L-Cystine + L-Glutathione : efficacy for an even complexion / Joël Duperray in PERSONAL CARE EUROPE, Vol. 13, N° 4 (09/2019)  

[article]  inPERSONAL CARE EUROPE > Vol. 13, N° 4 (09/2019) . - p. 49-53 Titre : L-Cystine + L-Glutathione : efficacy for an even complexion Type de document : texte imprimé Auteurs : Joël Duperray, Auteur ; Renaud Sergheraert, Auteur ; Kunyanatt Chalothorn, Auteur ; Preeyanuch Tachalerdmanee, Auteur ; Fabrice Perin, Auteur Année de publication : 2019 Article en page(s) : p. 49-53 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Agents de blanchiment Dermo-cosmétologie Etudes cliniques Evaluation Mélanogénèse Peau -- Soins et hygiène Taches pigmentaires (dermatologie) Index. décimale : 668.5 Parfums et cosmétiques Résumé : The quest for means to get a beautiful skin is endless. However, defining what is beautiful partially depends on the geographical and ethnic origins of the persons. For instance, having a white skin is an extremely important element of the women's beauty in Asian culture. The desire for white skin originally cornes from traditional Asian values and beliefs. This desire has also been reinforced by Western influences (for instance Caucasian models are often used in adverts for European or American cosmetic brands sold in Asian countries). That is the reason why whitening/lightening products are among the best-selling products in the Asian cosmetic industry and are also becoming very important in Middle East, Africa and South America. In these areas, for many people, hyperpigmentation and skin pigmentary spots are not only considered as aesthetic problems, but they are also synonymous of decreased self-esteem, premature skin ageing and may facilitate the occurrence of skin damages, exacerbated by sun exposure. Conversely, Caucasians are looking to tan their skin since many consider tanning as a marker of a healthy lifestyle. But recent global consumer surveys on the primary cosmetic concerns of women have identified uneven skin tone and age spots as major concerns relative to signs of ageing. Trying to maintain or to regain a uniform skin tone, clear of age spots, is therefore a major and shared objective to consumers worldwide. Note de contenu : - Clinical study - Anti-pigmentary spots effect - Skin lightening effect - Self-assessment - Tolerance - Fig. 1 : Simplified representation of melanin biosynthesis. The putative mechanism of the lightening action of Cysti-White is that the oral supplement accelerates the synthesis rate of pheomelanin whilst slowing down eumelanin production. - Fig. 2 : Oral supplementation with L-Cystine as a source of cysteine to increase glutathione production. - Fig. 3 : Evolution of the mean pigmentary spot size after 45 days and 90 days of daily use of the four tested oral formulations, compared to baseline. - Fig. 4 : Twice daily oral intake of L-Cystine + L-Glutatione supplement during 12 weeks visually reduce the pigmentary spot on face. - Fig. 5 : Evolution of the mean Individual Typological Angle ITA° determined on the cheek (top) and on the lower forearm (bottom) after 45 days and 90 days of daily use of the four tested oral formulations, compared to baseline. - Fig. 6 : Twice daily oral intake of Cysti-White during 12 weeks visibly lightens the facial skin. - Fig. 7 : Mean percetentages of agreements with some statements after 90 days of use of the tested oral supplements. Mechanisms regulating melanogenesis. En ligne : https://drive.google.com/file/d/15ZViNMGuXrM1RzJd1bN6BeywOmc7pCqq/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33150 [article]

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