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Littérature scientifique sur le sujet « Cosmetic active ingredients »

Auteur : Grafiati

Publié le 10 mars 2023

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Articles de revues sur le sujet "Cosmetic active ingredients"

Siahaan, Evi Amelia, Agusman, Ratih Pangestuti, Kyung-Hoon Shin et Se-Kwon Kim. « Potential Cosmetic Active Ingredients Derived from Marine By-Products ». Marine Drugs 20, n^o 12 (24 novembre 2022) : 734. http://dx.doi.org/10.3390/md20120734.

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The market demand for marine-based cosmetics has shown a tremendous growth rate in the last decade. Marine resources represent a promising source of novel bioactive compounds for new cosmetic ingredient development. However, concern about sustainability also becomes an issue that should be considered in developing cosmetic ingredients. The fisheries industry (e.g., fishing, farming, and processing) generates large amounts of leftovers containing valuable substances, which are potent sources of cosmeceutical ingredients. Several bioactive substances could be extracted from the marine by-product that can be utilized as a potent ingredient to develop cosmetics products. Those bioactive substances (e.g., collagen from fish waste and chitin from crustacean waste) could be utilized as anti-photoaging, anti-wrinkle, skin barrier, and hair care products. From this perspective, this review aims to approach the potential active ingredients derived from marine by-products for cosmetics and discuss the possible activity of those active ingredients in promoting human beauty. In addition, this review also covers the prospect and challenge of using marine by-products toward the emerging concept of sustainable blue cosmetics.

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Roniawati, Irna, Norisca Aliza Putriana, Adinda Naswa Putri et Yuniar Alfain Nur’aini. « Review : Saffron’s Activity as an Active Ingredient in Cosmetics ». Indonesian Journal of Pharmaceutics 3, n^o 2 (3 novembre 2021) : 74. http://dx.doi.org/10.24198/idjp.v3i2.34876.

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Saffron (Crocus sativus) is a plant that has been widely used in Asia, especially in the health sector. This can be related to other than that saffron is also known for its use as a cosmetic because Saffron has various kinds of pharmacological activities beneficial to human skin. Today's cosmetic users prefer cosmetics with herbal or natural ingredients, especially in Indonesia. This happens because it is considered that herbal cosmetics are safer and harmless in long-term use. Therefore, it is necessary to do related act ivities of saffron as a cosmetic ingredient. This is narrative research where the data is obtained from PubMed, Science Direct, and Google Scholar with keywords Saffron, Saffron for cosmetics, and others. There were eight references, with inclusion criteria being national and international journals and national websites published in 2011-2021, especially regarding the study of saffron activity as an ingredient for cosmetics. Then the data is analyzed narratively. It was found that Saffron (Crocus sativus) contains compounds that have a cosmetic activity such as safranal which can be used as a perfume, crocin as an antioxidant and as anti-dark spot, crocin, safranal, and crocetin as anti-UV, crocin, and crocetin as an anti-inflammatory and as coloring pigment in cosmetics, vitamin C, flavonoids and zinc as a face toner, kaempferol, crocin and crocetin as anti-wrinkle, zeaxanthin, lycopene, carotene, crocetin, picrocrocin, kaempferol, and crocin as anti-aging. Saffron (Crocus sativus) has various beneficial activities for the skin, so it can be used as an ingredient in making cosmetics.Keywords : Cosmetics, Herbal, Saffron, Herbal Cosmetics, Active Ingredient

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Pagels, Fernando, Cíntia Almeida, Vitor Vasconcelos et A. Catarina Guedes. « Cosmetic Potential of Pigments Extracts from the Marine Cyanobacterium Cyanobium sp. » Marine Drugs 20, n^o 8 (27 juillet 2022) : 481. http://dx.doi.org/10.3390/md20080481.

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The current mindset in the cosmetics market about sustainable ingredients had increased the search for new sources of natural active ingredients. Cyanobacteria are a great source of functional ingredients for cosmetics, as a producer of pigments with described bioactive potential (carotenoids and phycobiliproteins). This work aimed to evaluate the cosmetic potential of marine cyanobacterium Cyanobium sp. pigment-targeted extracts (carotenoids and phycobiliproteins), evaluating their in vitro safety through cytotoxicity assays, cosmetic-related enzyme inhibition, ingredient stability, and putative product (serum formulation). Results showed no cytotoxicity from the extracts in skin-related cell lines. Carotenoid extract showed anti-hyaluronidase capacity (IC50 = 108.74 ± 5.74 mg mL−1) and phycobiliprotein extract showed anti-hyaluronidase and anti-collagenase capacity (IC50 = 67.25 ± 1.18 and 582.82 ± 56.99 mg mL−1, respectively). Regarding ingredient and serum stability, both ingredients showed higher stability at low-temperature conditions, and it was possible to maintain the pigment content and bioactive capacity stable during the tested period, although in higher temperatures the product was degraded in a week. As a major conclusion, both extracts can be potential natural and sustainable ingredients for cosmetic uses, with relatively simple formulation and storage, and can be promising natural anti-aging ingredients due to their bioactive capacity.

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Plainfossé, Hortense, Pauline Burger, Grégory Verger-Dubois, Stéphane Azoulay et Xavier Fernandez. « Design Methodology for the Development of a New Cosmetic Active Based on Prunus domestica L. Leaves Extract ». Cosmetics 6, n^o 1 (29 janvier 2019) : 8. http://dx.doi.org/10.3390/cosmetics6010008.

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When it comes to the development of new active ingredients for cosmetics, biodiversity is a rich source for inspiration that must be tapped in a sustainable manner to cause no social nor ecological damage. Agri-food by-products are therefore more and more considered as available biomass that can be reused to extract their maximum value to produce new cosmetic ingredients before returning to the biosphere. The process to transform plant waste materials into powerful cosmetic actives is thoroughly described in the present paper via the example of the design of a liquid anti-aging ingredient based on a Prunus domestica L. extract obtained by maceration of plums’ dried leaves in propylene glycol. The subsequent development of an SPE (solid-phase extraction) methodology used to remove the propylene glycol to get access to the extracted molecules is thoroughly described as a means to follow the stability of the ingredient over time once formulated into a finished product.

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Morais, Tiago, João Cotas, Diana Pacheco et Leonel Pereira. « Seaweeds Compounds : An Ecosustainable Source of Cosmetic Ingredients ? » Cosmetics 8, n^o 1 (15 janvier 2021) : 8. http://dx.doi.org/10.3390/cosmetics8010008.

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Seaweed-based cosmetics are being gradually used by consumers as a substitute of synthetic equivalent products. These seaweed-based products normally contain purified compounds or extracts with several compounds. Several seaweeds’ molecules already demonstrated a high potential as a cosmetic active ingredient (such as, mycosporine-like amino acids, fucoidan, pigments, phenolic compounds) or as a key element for the products consistency (agar, alginate, carrageenan). Moreover, seaweeds’ compounds present important qualities for cosmetic application, such as low cytotoxicity and low allergens content. However, seaweeds’ biochemical profile can be variable, and the extraction methods can cause the loss of some of the biomolecules. This review gives a general look at the seaweed cosmetics benefits and its current application in the cosmetic industry. Moreover, it focuses on the ecological and sustainable scope of seaweed exploitation to guarantee a safe source of ingredients for the cosmetic industry and consumers.

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AMBERG, NORA. « SUSTAINABILITY BACKROUND OF PRODUCING AND SELECTING COSMETICS, WITH SPECIAL PRECAUTIONS FOR PRODUCT INSTRUMENTS ». sj-economics scientific journal 31, n^o 4 (30 décembre 2018) : 411–23. http://dx.doi.org/10.58246/sjeconomics.v31i4.79.

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The paper deals with the role of sustainability in the light of the production andselection of cosmetics, paying special attention to the presentation of varieties of naturalcosmetics and chemicals with natural substances. The d etrimental cosmetic ingredients have anegative impact on both the consumer's health and the immediate environment. In most cases,chemical cosmetics can be replaced by natural solutions, otherwise natural cosmetics that havea beneficial effect on health and the environment, bearing in mind the long term sustainable,i.e. less polluted environment and the positive influence of the current environmental status.Consumers should not even fear that natural cosmetic products will not be as effective as theirc hemical counterparts. The factories of cosmetic companies are increasingly focusing attentionon the fact that in their factories' laboratories cosmetics that are naturally active, ingredient andpackaged are manufactured and sold through the sales chain.

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Duprat-de-Paule, Sébastien, Jérôme Guilbot, Alicia Roso, Sophie Cambos et Aurélie Pierre. « Augmented bio-based lipids for cosmetics ». OCL 25, n^o 5 (8 août 2018) : D503. http://dx.doi.org/10.1051/ocl/2018036.

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Practical examples showcase the key role of plant-based lipids in the design of innovative sustainable specialty ingredients. Great diversity in plant origins and chemical transformations leads to great molecular diversity and explains why bio-based lipids are involved in broad ingredient categories such as biodegradable emollients, environmentally friendly surfactants, rheology modifiers and active ingredients. Choosing lipid structure, with varying fatty chain length, saturation level and branching, determines ingredient functionality and usage, as these vary, for instance in the case of surfactants, solubilizing, wetting, foaming and emulsifying properties (oil-in-water or water-in-oil). The lipid structure also impacts the ingredients’ final solid or liquid appearance. Now ready-to-use ingredients can be created and we can innovate with cold processable new cosmetic formulation concepts. Perhaps most importantly, optimal selection of lipid structure and composition can also drive consumer benefits in cosmetic ingredients, especially, the final sensory experience (for excipients) and biological efficacy (for active ingredients). Bio-based lipids lead to new ingredients with augmented performance and sensoriality.

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Ferreira, Marta Salvador, Diana I. S. P. Resende, José M. Sousa Lobo, Emília Sousa et Isabel F. Almeida. « Marine Ingredients for Sensitive Skin : Market Overview ». Marine Drugs 19, n^o 8 (17 août 2021) : 464. http://dx.doi.org/10.3390/md19080464.

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Marine ingredients are a source of new chemical entities with biological action, which is the reason why they have gained relevance in the cosmetic industry. The facial care category is the most relevant in this industry, and within it, the sensitive skin segment occupies a prominent position. This work analyzed the use of marine ingredients in 88 facial cosmetics for sensitive skin from multinational brands, as well as their composition and the scientific evidence that supports their efficacy. Marine ingredients were used in 27% of the cosmetic products for sensitive skin and included the species Laminaria ochroleuca, Ascophyllum nodosum (brown macroalgae), Asparagopsis armata (red macroalgae), and Chlorella vulgaris (microalgae). Carotenoids, polysaccharides, and lipids are the chemical classes highlighted in these preparations. Two ingredients, namely the Ascophyllum nodosum extract and Asparagopsis armata extracts, present clinical evidence supporting their use for sensitive skin. Overall, marine ingredients used in cosmetics for sensitive skin are proposed to reduce skin inflammation and improve the barrier function. Marine-derived preparations constitute promising active ingredients for sensitive skin cosmetic products. Their in-depth study, focusing on the extracted metabolites, randomized placebo-controlled studies including volunteers with sensitive skin, and the use of extraction methods that are more profitable may provide a great opportunity for the cosmetic industry.

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Zillich, O. V., U. Schweiggert-Weisz, P. Eisner et M. Kerscher. « Polyphenols as active ingredients for cosmetic products ». International Journal of Cosmetic Science 37, n^o 5 (16 mars 2015) : 455–64. http://dx.doi.org/10.1111/ics.12218.

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Coimbra, Sara Cabanas, Inês Sousa-Oliveira, Inês Ferreira-Faria, Diana Peixoto, Miguel Pereira-Silva, Ankita Mathur, Kiran D. Pawar et al. « Safety Assessment of Nanomaterials in Cosmetics : Focus on Dermal and Hair Dyes Products ». Cosmetics 9, n^o 4 (8 août 2022) : 83. http://dx.doi.org/10.3390/cosmetics9040083.

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Nanomaterials use in cosmetics is markedly enhancing, so their exposure and toxicity are important parameters to consider for their risk assessment. This review article provides an overview of the active cosmetic ingredients used for cosmetic application, including dermal cosmetics and also hair dye cosmetics, as well as their safety assessment, enriched with a compilation of the safety assessment tests available to evaluate the different types of toxicity. In fact, despite the increase in research and the number of papers published in the field of nanotechnology, the related safety assessment is still insufficient. To elucidate the possible effects that nanosized particles can have on living systems, more studies reproducing similar conditions to what happens in vivo should be conducted, particularly considering the complex interactions of the biological systems and active cosmetic ingredients to achieve newer, safer, and more efficient nanomaterials. Toward this end, ecological issues and the toxicological pattern should also be a study target.

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Thèses sur le sujet "Cosmetic active ingredients"

Mattiasson, Johanna. « Method development of an in vitro vertical Franz diffusion cell system to assess permeation of cosmetic active ingredients ». Thesis, Uppsala universitet, Institutionen för kemi - Ångström, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-414205.

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For evaluation of potential skincare ingredients, an in-house method using Static Franz diffusion cells and dialysis membranes was developed. Benzoic acid was chosen as a model substance along with L-ascorbic acid and α-Tocopherol. The cell conditions were tailored to encourage transmembrane diffusion. Benzoic acid was tested in acetate buffer (pH 4.6), which yielded a maximum flux of 0.91 ± 0.03 mg ∙ cm-2 ∙ h-1 and absorption of 103 ± 4 % out of the applied dose after 8 h. There were strong indications that benzoic acid ionization must be suppressed by lower pH to increase penetration rates. L-ascorbic acid yielded a flux of 0.29 ± 0.01 mg ∙ cm-2 ∙ h-1 in phosphate buffered saline (PBS, pH 7.4) and absorption of 87 ± 7 % of the applied dose after 8 h. Experiments with α-tocopherol showed no penetration in PBS with added bovine serum albumin (BSA), leading to the hypothesis that more hydrophobic membranes and/or receptor medium are needed for the study of lipophilic compounds. In addition, the release of benzoic acid from the amorphous mesoporous magnesium carbonate Upsalite® was investigated. The results showed significant release and penetration of benzoic acid from the solid matrix in both acetate buffer and PBS. The maximum flux was estimated to 6.61 ± 0.96 mg ∙ cm-2 ∙ h-1 in acetate buffer and 99 ± 9 % of the applied dose was absorbed after 3h. Tests of Upsalite with benzoic acid on hydrophobic silicone and Strat-M membranes showed no significant penetration, likely due to insufficient wetting of the sample. Pre-wetting of Strat-M membrane lead to penetration of benzoic acid into the membrane. Flux rates achieved on synthetic membranes are generally much higher compared to skin, which results in this thesis show. In conclusion, data for pure benzoic acid and L-ascorbic acid in the developed method using dialysis membranes showed reasonable agreement with literature. Penetration of benzoic acid is pH-dependent and may be either increased or decreased by choice of skin model or by using Upsalite as vehicle. Choosing a buffer pH below the pKa of the substance may enhance penetration. Introducing L-ascorbic acid in Upsalite could potentially increase the permeation, similar to that of benzoic acid.

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Silva, Diana Patrícia Pinto da. « Nanopartículas lipídicas : aplicações cosméticas ». Master's thesis, [s.n.], 2013. http://hdl.handle.net/10284/4484.

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Projeto de Pós-Graduação/Dissertação apresentado à Universidade Fernando Pessoa como parte dos requisitos para obtenção do grau de Mestre em Ciências Farmacêuticas
Tendo em conta a sua composição e as vantagens que apresentam, as nanopartículas lipídicas têm sido amplamente aplicadas em cosmetologia, existindo atualmente vários produtos comercializados. Deste modo, a análise das potencialidades destes sistemas para novas aplicações cosméticas é essencial. Neste trabalho é efetuada uma revisão bibliográfica relativa aos diferentes produtos cosméticos contendo nanopartículas lipídicas, quer estes se encontrem em fase de estudo ou já disponíveis no mercado. Na primeira parte do trabalho é feita uma breve introdução acerca da estrutura da pele, da definição de produtos cosméticos e das suas principais caraterísticas e aplicações. Na segunda parte são descritos os sistemas de nanopartículas lipídicas, tendo em conta as suas caraterísticas estruturais, diferentes aplicações em cosmetologia e são dados exemplos dos produtos cosméticos existentes no mercado. According to their composition and advantages, lipid nanoparticles have been widely applied in cosmetology, and there are several products that can be found on the market nowadays. Therefore, the analysis of the potential of these new systems for cosmetic applications is essential. In this work is performed a literature review about the diverse cosmetic products containing lipid nanoparticles, whether they are in clinical trials or already in the market. In the first part, a brief introduction regarding the structure of the skin, the definition of cosmetic products, their main characteristics and applications are presented. In the second part are described the lipid nanoparticles systems, considering their structural characteristics, different applications in cosmetology and are given some examples of the cosmetic products that are already on the market.

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Santos, Cláudia Maria Pereira dos. « Nanoencapsulação de ingredientes activos em cosmetologia ». Master's thesis, [s.n.], 2012. http://hdl.handle.net/10284/3737.

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Projeto de Pós-Graduação/Dissertação apresentado à Universidade Fernando Pessoa como parte dos requisitos para obtenção do grau de Mestre em Ciências Farmacêuticas
A aplicação de produtos cosméticos na pele apresenta limitações, devido sobretudo à dificuldade dos ingredientes activos em atravessarem o estrato córneo. Por outro lado, é importante garantir que estes não atinjam a circulação geral. Neste sentido, várias estratégias têm sido desenvolvidas e investigadas para contornar o problema, designadamente, o uso de nanossistemas para encapsular e vectorizar os ingredientes activos. A nanoencapsulação de ingredientes activos em cosmetologia tem sido descrita como promissora, devido às vantagens que apresenta para as substâncias encapsuladas: (i) aumento da estabilidade; (ii) libertação controlada; (iii) direccionamento para locais específicos; (iv) promoção da penetração cutânea. Adicionalmente, o uso de nanossistemas por si só permite obter efeitos benéficos ao nível da pele: (i) manutenção da integridade da barreira cutânea; (ii) aumento da eficácia e tolerância dos filtros solares à superfície; (iii) obtenção de produtos mais atractivos do ponto de vista estético. Este trabalho tem como objectivo efectuar uma revisão bibliográfica relativa à nanoencapsulação de ingredientes activos em cosmetologia. Inicialmente é efectuada uma abordagem relativa à anatomia e histologia da pele. De seguida, são descritos os diversos nanossistemas com aplicações em cosmetologia, indicando-se as suas vantagens e limitações. Os resultados publicados nos últimos anos pela comunidade científica, bem como as preparações actualmente existentes no mercado e as perspectivas futuras desta aplicação são referidos. The application of cosmetics on the skin shows some drawbacks, mainly because of limitations of the active ingredients to cross the stratum corneum barrier. On the other hand, is important to assure that these substances do not reach systemic circulation. Therefore, several strategies have been developed in order to circumvent the problem, namely, the use of nanosystems for the encapsulation and target the active ingredients. The nanoencapsulation of cosmetic active ingredients have been described as very promising, because of the advantages that presents for the encapsulated substances: (i) improved stability; (ii) controlled release; (iii) local target; (iv) skin penetration enhancement. Moreover, the use of empty nanosystems exerts skin benefits: (i) improvement of barrier integrity; (ii) promotion of the efficacy and tolerability of sun filters; (iii) achievement of more esthetic attractive products.

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Westfall, Alexandra. « Evaluation of the Efficacy of Anthocyanins as Biologically Active Ingredients in Lipstick Formulations ». The Ohio State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=osu1429170218.

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Ruivo, Adriana Pessoa. « Envelhecimento cutâneo : fatores influentes, ingredientes ativos e estratégias de veiculação ». Master's thesis, [s.n.], 2014. http://hdl.handle.net/10284/4413.

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Projeto de Pós-Graduação/Dissertação apresentado à Universidade Fernando Pessoa como parte dos requisitos para obtenção do grau de Mestre em Ciências Farmacêuticas
O envelhecimento é um processo de degradação progressiva e diferencial que ocorre em todos os órgãos e desta forma a pele não lhe fica indiferente. O envelhecimento cutâneo pode ser intrínseco ou cronológico, aquele que surge com a idade influenciado por fatores genéticos, ou extrínseco ou actínico aquele que surge influenciado por fatores externos tal como o tabaco, poluição, hábitos de vida e predominantemente, a radiação solar (fotoenvelhecimento). Surgem, com a idade, alterações bioquímicas que conduzem a manifestações clínicas ao nível cutâneo, como rugas, aumento de espessura, pigmentações, entre outras. Algumas dessas alterações, encontram-se ao nível das funções do sistema imunitário, dos anexos cutâneos, da reparação do DNA e também do balanço de espécies oxidantes e antioxidantes surgindo geralmente stress oxidativo, estas por serem cumulativas agravam e antecipam o processo de envelhecimento. Existem, atualmente, alguns ingredientes e metodologias eficazes na melhoria de sinais de envelhecimento, designadamente, as vitaminas A, E e C, coenzima Q10, retinoides, compostos fitoterápicos como os alfa-hidroxi-ácidos (AHA), ou derivados da soja. No que respeita a metodologias, existem igualmente algumas com eficácia comprovada como os peeling’s químicos, o botox ou toxina botulínica, os fillers ou preenchimentos. Sendo esta uma área em constante investigação, existem analogamente, muitos estudos em desenvolvimento, havendo algumas novidades neste âmbito, principalmente ao nível de ingredientes ativos, destacando-se os péptidos. Relativamente a veículos, geralmente, são produtos em forma de emulsão (cremes, por exemplo), existindo já novidades nesse âmbito como, por exemplo, as nano e micropartículas, lipossomas, nano e microemulsões e as ciclodextrinas. O presente trabalho pretende elucidar e abordar todos os pontos supramencionados, de forma pormenorizada auxiliando a uma melhor compreensão do envelhecimento cutâneo. Aging is a process of gradual and differential degradation that occurs in all organs and the skin is not different. Skin aging can be intrinsic or chronological, one that comes with age influenced by genetics, or extrinsic or actinic that appears influenced by external factors such as tobacco, pollution, lifestyle and solar radiation (Photoaging), predominantly. Aging increases modified processes that lead to visual clinical changes in the skin such as wrinkles, increased thickness, and pigmentation among others. These changes occur in the immune system, skin appendages, DNA repair and also in the balance of oxidant and antioxidant species that generally causes oxidative stress. These processes are cumulative, and that worsens and anticipates the aging process. Currently, there are some ingredients and effective methodologies that improve signs of aging, notably, vitamins A, C and E, coenzyme Q10, retinoids, herbal compounds such as alpha hydroxy acids (AHA) and soy products. Regarding to methods, there are also some with proven efficacy such as: chemical peels, botulinum toxin and fillers. Aging cosmetics is an area of constant research, there are similarly many studies in development, with some news in this field, especially in terms of active ingredients, like peptides. Vehicles are usually in the form of emulsion products (creams, for example), and may include, for example, nano and microparticles, liposomes, nano and microemulsions and cyclodextrins. The present work aims to elucidate and review all the above in detail for a better understanding of aging cosmetic science.

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Janvier, Xavier. « Etude de l'effet d'un polluant atmosphérique (NO2) sur le microbiote cutané Dialog between skin and its microbiota : Emergence of "Cutaneous bacterial endocrinology" Deleterious effects of an air pollutant on a selection of commensal skin bacterial strains, potential contributor to dysbiosis Response of a commensal skin bacterium to nitrogen oxides (NOx), air pollutants : potential tools for testing anti-pollution active cosmetic ingredient effectiveness Draft genome sequence of the commensal strain Corynebacterium tuberculostearicum CIP 102622 isolated from human skin Draft genome sequences of four commensal strains of Staphylococcus and Pseudomonas isolated from healthy human skin ». Thesis, Normandie, 2021. http://www.theses.fr/2021NORMR007.

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Le dioxyde d’azote (NO2), en tant que second polluant atmosphérique le plus meurtrier en Europe est un des plus préoccupants pour la santé humaine selon l’Agence Européenne de l’Environnement. Il est notamment connu pour être responsable de maladies cardiovasculaires, respiratoires ainsi que pour contribuer au vieillissement cutané et au développement de la dermatite atopique. Des facteurs endogènes à l’hôte tels que le microbiote cutané interviennent également dans cette pathologie. En effet, de nombreuses pathologies cutanées sont corrélées à un déséquilibre (dysbiose) du microbiote bactérien, un acteur essentiel du maintien de l’homéostasie de la peau. Or, il est fortement soupçonné que l’effet des polluants sur la peau implique des mécanismes d’action directe mais également un mécanisme d’action indirecte lié à l’altération du microbiote cutané par le polluant. En conséquence, il est pertinent d’aborder l’effet du NO2 gazeux (gNO2) sur le microbiote cutané bactérien. Cette thèse a donc pour objectif d’évaluer l’impact physiologique, morphologique et moléculaire du NO2 sur des souches bactériennes commensales d’espèces représentatives du microbiote cutané (Staphylococcus aureus, Staphylococcus epidermidis, Staphylococcus capitis, Pseudomonas fluorescens, Corynebacterium tuberculostearicum). Selon l’espèce, des réponses différentes au stress nitrosant généré par le gNO2 ont ainsi été mises en évidence ainsi qu’une tolérance plus importante au gNO2 pour certaines d’entre elles. Ces travaux suggèrent par conséquent que le NO2 pourrait contribuer à la formation d’un état dysbiotique du microbiote cutané et participer à l’action indirect du polluant sur la peau
Nitrogen dioxide (NO2), as the second most deadly air pollutant in Europe, is one of the most of concern for human health according to the European Environment Agency. It is notably known to be responsible for cardiovascular and respiratory diseases and also contributes to skin aging and atopic dermatitis. Host endogenous factors such as the cutaneous microbiota are also involved in this pathology, which is common in urban and suburban areas. Indeed, many skin pathologies are correlated to an imbalance (dysbiosis) of the bacterial microbiota, an essential player in the preservation of skin homeostasis. However, it is strongly presumed that the effect of pollutants on the skin involves direct mechanisms of action but also an indirect mechanism linked to the alteration of the cutaneous microbiota by the pollutant. Consequently, it is relevant to address the effect of gaseous NO2 (gNO2) on the cutaneous microbiota. This thesis aims to assess the physiological, morphological and molecular impact of gNO2 on commensal bacterial strains of representative species of the cutaneous microbiota (Staphylococcus aureus, Staphylococcus epidermidis, Staphylococcus capitis, Pseudomonas fluorescens, Corynebacterium tuberculostearicum). Depending on the species, different responses to gNO2-generated nitrosative stress were thus highlighted as well as a higher tolerance to gNO2 for some of them. This work therefore suggests that gNO2 could contribute to the formation of a dysbiotic state of the cutaneous microbiota and participate in the pollutant indirect action on the skin

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Hu, Keng-ming, et 胡耿銘. « The properties of carbon paste electrode used for transdermal absorption studies of active ingredient in cosmetics ». Thesis, 2008. http://ndltd.ncl.edu.tw/handle/92024301255374218156.

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碩士
嘉南藥理科技大學
化妝品科技研究所
96
The ultimate purpose of this research is to develop a on-line electrochemical analysis system used for in-situ transdermal absorption studied for cosmetics. The manufacturing and performance analysis of electrode which is the key component in electrochemical analysis are the main scope in this study. Compared to platinum electrode, the cost of materials used for fabricating carbon electrode is much lower. Therefore, this study is focused on the manufacturing process and performance analysis of carbon electrode. The effect of conductive carbon content on the activity of electrode was studied. Electrochemical Impedance Spectroscopy(EIS) was used to characterize the electrode. Cyclic Voltammetry(CV) was used to analysis the response of the electrode to K3[Fe(CN)6] and vitamin C and its derivatives which are the common active ingredient of in cosmetics. The effect of supporting electrolyte’s concentration on response current was also studied. The polarization resistance and capacity of the carbon electrode obtained from electrochemical impedance analysis show good reproducibility. The response of self-made carbon electrode to K3[Fe(CN)6] shows well redox behavior and the responses to ascorbic acid, magnesium ascorbyl phosphate and ascorbyl glucoside show competent linear relation to the concentration of the analyte in the range of 5.0x10-2~1.0x10-4 M with correlation coefficient higher than 0.9988. Furthermore, the response of carbon electrode to ascorbic acid has the highest sensitivity than it to ascorbyl glucoside and the response to magnesium ascorbyl phosphate got the lowest sensitivity among these three vitamin C related substances. In summary, the self-made carbon electrode in this study shows good stability and competent reproducible response to analyte. The applicable concentration range for active ingredient in cosmetics can be established by analyzing the linear relation and sensitivity of the response to the analyte. It is promising that there are great potential for the utilization of this electrode in the developing of on-line electrochemical in-situ transdermal absorption analysis system. The test and research result found the carbon electrode of manufacture, make use of the Electrochemical Impedance Spectroscopy method to get characteristic parameters, such as...etc, representability the carbon electrode of manufacture have fairly good and stability. And analysis result of Cyclic Voltammetry method have rather consistent and stability at different contained respondence of redox.As for analyze the often used active ingredient - vitamin C and its derivatives, we found concentrations of within the scope of, its respond of value of line relationship factor,all reaches 0.9988 above, simultaneously at vitamin C, vitamin C phosphoric acid magnesium and the vitamin C glucose between the vitamin C have the highest sensitivity,vitamin C glucose secondly, the vitamin C phosphoric acid magnesium lowest. Summary above result, this research of the carbon electrode have an equal, moreover analysis respondence of redox with fairly good reproducibility and stability,to utilize the electrode analyze sensitivity of samples and line relation of samples respond that we can build up a scope of detected with electrode application in the active ingredient,therefore applies this electrode establishment electrochemical the on-line and in-situ absorbed system through the skin that should have a good development potential.

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Livres sur le sujet "Cosmetic active ingredients"

Cosmetically active ingredients : Recent advances. Carol Stream, Ill : Allured Books, 2011.

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Kozlowski, Angela C. Biologically active ingredients : Demonstrating their mechanisms and proof of efficacy. Carol Stream, IL : Allured Pub Corp, 2009.

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Delivery systems for cosmetic active ingredients. Southborough, Mass : Drug and Market Development Publications, 1999.

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Cosmeceuticals : Active Skin Treatment (C&t Ingredient Resource). Allured Publishing Corporation, 2005.

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Chapitres de livres sur le sujet "Cosmetic active ingredients"

Kristmundsdóttir, Thórdís, et Skúli Skúlason. « Lipids as Active Ingredients in Pharmaceuticals, Cosmetics and Health Foods ». Dans Lipids and Essential Oils as Antimicrobial Agents, 151–77. Chichester, UK : John Wiley & Sons, Ltd, 2010. http://dx.doi.org/10.1002/9780470976623.ch7.

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Stiger-Pouvreau, Valérie, et Fabienne Guerard. « Bio-Inspired Molecules Extracted from Marine Macroalgae : A New Generation of Active Ingredients for Cosmetics and Human Health ». Dans Blue Biotechnology, 709–46. Weinheim, Germany : Wiley-VCH Verlag GmbH & Co. KGaA, 2018. http://dx.doi.org/10.1002/9783527801718.ch22.

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Metcalfe, C., et T. Causer. « The Inside Story – The Science Behind Active Ingredients ». Dans Discovering Cosmetic Science, 225–61. The Royal Society of Chemistry, 2020. http://dx.doi.org/10.1039/bk9781782624721-00225.

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This chapter covers a wide range of active ingredients and product types, demonstrating how specific ingredients work in your products and why they are used. The chapter takes a look both at ingredients that are widely used in products to deliver ‘everyday’ functions, such as antioxidants and preservatives, and at some of the industry's ‘special’ palette of active ingredients, such as peptides and vitamins.

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Wiechers, Johann W. « Optimizing Skin Delivery of Active Ingredients From Emulsions ». Dans Delivery System Handbook for Personal Care and Cosmetic Products, 409–36. Elsevier, 2005. http://dx.doi.org/10.1016/b978-081551504-3.50025-0.

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Nunes, Maria Antónia, Francisca Rodrigues et Maria Beatriz P. P. Oliveira. « Grape Processing By-Products as Active Ingredients for Cosmetic Proposes ». Dans Handbook of Grape Processing By-Products, 267–92. Elsevier, 2017. http://dx.doi.org/10.1016/b978-0-12-809870-7.00011-9.

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Yosipovitch, Gil. « Active Ingredients in Cosmetic PreparationsCONTENTSOverviewNaturally occurring substances extracted from animal tissuesPlant extractsAromatic oilsVitaminsCommon foodstuffsSome additional comments ». Dans Series in Cosmetic and Laser Therapy, 131–42. Informa Healthcare, 2009. http://dx.doi.org/10.3109/9781616310004.016.

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Saxena, Shweta, Sweta Prakash et Sadhna Panday. « Crop Improvement Technology With Lawsonia inermis ». Dans Green Chemistry for the Development of Eco-Friendly Products, 200–210. IGI Global, 2022. http://dx.doi.org/10.4018/978-1-7998-9851-1.ch010.

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Lawsonia inermis L. (family Lythraceae), often known as henna, is a dye-producing plant cultivated in various parts of the world for cosmetic purposes. Since time immemorial, leaf powder made from this little tree has been used to beautify skin, hair, fingernails, leather, silk, and wool. The plant's leaf, which contains an active dye (red orange pigment), lawsone, is widely employed in cosmetic and pharmaceutical industries (2-hydroxy-1,4 naphthoquinone). Lawsone, an essential secondary metabolite, accumulates in the plant's aerial parts, with the highest concentration of 1.0–1.4% in the young leaf petiole. Analgesic, hypoglycemic, hepatoprotective, immune stimulant, anti-inflammatory, antibacterial, anti-dermatophytic, protein glycation inhibition, anti-sickling, antioxidant, anti-fertility, tuberculostatic, wound healing, anticomplimentary, and anticancer properties have all been reported for the plant. Henna is currently recognised as a valuable source of unique natural ingredients for the creation of medications and commercial products for a variety of ailments.

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« Process Engineering in Cosmetics to Utilize Active Ingredients ». Dans Cosmeceuticals and Active Cosmetics, 623–32. CRC Press, 2005. http://dx.doi.org/10.1201/noe0824759438-43.

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« Ellagic Acid : A New Skin-Whitening Active Ingredient ». Dans Handbook of Cosmetic Science and Technology, 489–94. CRC Press, 2001. http://dx.doi.org/10.1201/9780824741396-42.

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Leffingwell, John. « Cooling Ingredients and Their Mechanism of Action ». Dans Handbook of Cosmetic Science and Technology, Third Edition, 661–75. CRC Press, 2009. http://dx.doi.org/10.1201/b15273-66.

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Actes de conférences sur le sujet "Cosmetic active ingredients"

Tsyganova, Irina Vladimirovna, Tatyana Vasilievna Ilyina et Victoria Alexandrovna Ermolaeva. « DEVELOPMENT OF TECHNOLOGY FOR THE PRODUCTION OF COSMETIC BALM BASED ON NATURAL CARROT ROOT EXTRACT ». Dans Themed collection of papers from Foreign International Scientific Conference «Trends in the development of science and Global challenges» Ьу НNRI «National development» in cooperation with AFP. December 2022. Crossref, 2023. http://dx.doi.org/10.37539/man5.2022.17.57.002.

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Today, cosmetic products containing natural ingredients and a minimum amount of excipients are in demand. Therefore, the development of new technologies and formulations of natural-based cosmetics is a promising area of scientific research in the production of extracts from plant materials, the search for optimal combinations of bases and active ingredients.

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Boka, V.-I., S. Athanasopoulou, E. Spanidi, E. Beletsiotis, G. Lagiopoulos et K. Gardikis. « Bee Products in Cosmetic Industry : Propolis Extract a Potent “microbiome friendly” Active Ingredient ». Dans GA – 70th Annual Meeting 2022. Georg Thieme Verlag KG, 2022. http://dx.doi.org/10.1055/s-0042-1759145.

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Stella, A., F. Bonnier, L. Miloudi, A. Tfayli, F. Yvergnaux, E. Munnier et C. Tauber. « Minimum volume Constrained non-negative matrix factorization applied to the monitoring of active cosmetic ingredient into the skin in Raman imaging ». Dans 10th International Conference on Pattern Recognition Systems (ICPRS-2019). Institution of Engineering and Technology, 2019. http://dx.doi.org/10.1049/cp.2019.0245.

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Berechet, Mariana Daniela, Demetra Simion, Rodica Roxana Constantinescu, Maria Stanca et Cosmin Andrei Alexe. « Active Principles in Basil Essential Oil – Ocimum basilicum L. Cotton Linings with Antibacterial Properties ». Dans The 9th International Conference on Advanced Materials and Systems. INCDTP - Leather and Footwear Research Institute (ICPI), Bucharest, Romania, 2022. http://dx.doi.org/10.24264/icams-2022.ii.3.

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Ocimum basilicum L. is an aromatic plant in the family Lamiaceae with bioactive properties used since ancient times in traditional medicine. The active ingredients of basil essential oil can be used in perfumes, pharmaceuticals, medicine, cosmetics or spices. In this study, the essential oil of basil was obtained by hydrodistillation in the Clevenger continuous extractor. It was characterized by GC-MS and 53 constituent compounds were identified. The majority compounds were highlighted: linalool, 64,569%, p-allyl anisol, 5,163%, Eucalyptol, 3,745%, α-Cadinene, 3,510%. Kovats indices were calculated and FT-IR analysis was performed to confirm the specific constituent compounds. The essential oil of basil was microbiologically analyzed against Escherichia coli (ATCC 10536) Gram-negative bacteria and against Staphylococcus aureus (ATCC 6538) Gram-positive bacteria by diffusometric working method. Antibacterial activity was determined by measuring the diameter of the inhibition zone around the samples. Samples of filter paper and cotton fabric were used to simulate shoe lining and bandages. Basil essential oil has resistance against the tested strains, observing the increase of the inhibition zone with the increase of the amount of essential oil used in treatments (20 μL, 30 μL, 50 μL). The results showed that Ocimum basilicum L. may be a good candidate as a plant-derived antibacterial agent for medical footwear, wound dressings and other medical applications.

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Konrade, Daiga, et Kriss Spalvins. « Extraction of bioactives from pumpkin by-products and determination of their antioxidant activity ». Dans Research for Rural Development 2022 : annual 28th international scientific conference proceedings. Latvia University of Life Sciences and Technologies, 2022. http://dx.doi.org/10.22616/rrd.28.2022.016.

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Agro-industrial and food processing from pumpkins (Cucurbitaceae) produces a large number of by-products: bark, pomace, seeds still rich in bioactive compounds, especially carotenoids and green pigments (proto chlorophyll (a and b) and proto pheophytin (a and b)), which exhibit a broad spectrum of health-promoting effects and can be used as ingredients in functional food and cosmetics. For extraction of bioactive compounds from dried pumpkin by-products different methods were used: supercritical CO2, Soxhlet extraction with n- hexane, ethanol. Vegetable oils (rapeseed, coconut, grapeseed and olive oil) were used as green solvent alternatives to conventional organic solvents for carotenoid extraction. Detection and analyses of chlorophylls and carotenoids was done with hexane/acetone, cyclohexane, ethanol as solvents. The aim of this study was to use pumpkin by-products for extraction of high-value bioactive compounds with different methods, to determine antioxidant´s content and profile – carotenoids (ß-carotene, lutein, lycopene, zeaxanthin), pigments (chlorophylls a, chlorophylls b) with different solvents and to find out what solvent can be used for detection of pigments and carotenoids; to determine antiradical scavenging activity of biologically active compounds in extracts from pumpkin by-products (peel and hulled seeds).

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Marchand, Regis, Catherine Kern, Remi Laville et Alicia Roso. « Eco-designed Virgin Coriander Seed Oil : A Food Supplement Solution to Soothe Sensitive Skin ». Dans 2022 AOCS Annual Meeting & Expo. American Oil Chemists' Society (AOCS), 2022. http://dx.doi.org/10.21748/skve8239.

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Sensitive or reactive skin is a common condition that affects many people, characterized by the occurrence of unpleasant sensations, such as stinging and burning, in response to stimuli that normally should not cause such sensations. The main hypothesis attributed to the occurence of sensitive skin is the disruption of the epidermal barrier and greater penetration of substances such as irritants. In keratinocytes, these substances can activate the NF-κB pathway, which plays an important role in orchestrating inflammatory responses. The regulation of NF-κB signaling is a key issue in controlling skin inflammation. Neurosensory dysfunction is also a mechanism to consider. Some cutaneous nerve endings express TRPA1 (transient receptor potential ankyrin 1), involved in nociception, itching and neurogenic inflammation. Petroselinic acid (C18:1n-12), which accounts for 60-75% of the fatty acids in coriander vegetable oil, has already demonstrated anti-inflammatory activity (Alaluf et al., 2002), used in the cosmetic and functional food industry. Our objective was to develop an eco-designed pure nutritional coriander vegetable oil and evaluate its effect in vitro and in vivo. The effect of coriander seed oil, obtained in one step by extrusion, was evaluated using two in vitro models: (1) inflammation model using a human keratinocytes cell line transfected with the luciferase reporter gene under the control of NF-κB+, (2) innovative in vitro keratinocytes-neurons co-culture model in which TRPA1 activation was followed. 0.0001% coriander seed oil showed a significant 48% protection of keratinocytes from NF-κB activation and 61% of keratinocytes-neurons co-culture from TRPA1 activation at 0.001%, both mechanisms being involved in occurence of sensitive skins. A double-blind, placebo controlled, pilot clinical study in volunteers with sensitive skin confirmed its efficacy on redness of the skin and on unpleasant sensations of stinging and itching. Thus, coriander seed oil is a promising soothing ingredient for sensitive skins.

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