Astaxanthin - the diamond of antioxidants in the fight against light-induced oxidative stress / Katharina Dokulil in SOFW JOURNAL, Vol. 147, N° 9 (09/2021)  

[article]  inSOFW JOURNAL > Vol. 147, N° 9 (09/2021) . - p. 2-6 Titre : Astaxanthin - the diamond of antioxidants in the fight against light-induced oxidative stress Type de document : texte imprimé Auteurs : Katharina Dokulil, Auteur ; Alexander Pototschnik, Auteur Année de publication : 2021 Article en page(s) : p. 2-6 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Antiâge Antioxydants Astaxanthine Cosmétiques Dermo-cosmétologie Peau -- Effets de la lumière Peau -- Soins et hygiène Stress oxydatif Index. décimale : 668.5 Parfums et cosmétiques Résumé : The skin, as the largest organ of the body, plays an important role for our health. As a protective shield, it is constantly exposed to external environmental influences and stress. In order to maintain and support this protective barrier, numerous active ingredients are used in cosmetics. A major group of these are antioxidants, which can neutralize stress factors in the skin. Astaxanthin, which is the strongest natural antioxidant belonging to the carotenoid family, does this particularly well due to its special molecular structure. Due to its unique structure of hydrophilic and lipophilic components, it can act more effectively in the lipid bilayers of the skin than most other antioxidants. Especially in the field of light-induced oxidative stress, triggered by UV radiation and infrared as well as blue light, in vitro and in vivo studies with the active ingredient AstaCos® OL50 from BDI-BioLife Science have shown that astaxanthin has a strong protective effect. Numerous research studies conclude that astaxanthin can also improve overall skin health, and provide comprehensive protection against oxidative stress. Possible uses range from anti-aging products to formulations that combat the effects of UV exposure and light, to an active ingredient in sunscreen products and face creams. Note de contenu : - The molecular structure of astaxanthin - Light-induced oxidative stress and the role of ROS (reactive oxygen species) - Light-induced oxidative stress & factors that can trigger it - Fig. 1 : AstaCos OL50 - Fig. 2 : Color spectrum of AstaCos OL50 in an O/W emulsion - Fig. 3 : Exemplary representation of UV-B irradiated 3D full skinmodels with H&E staining after 24h - Fig. 4 : UV-VIs spectrum of AstaCos OL50 En ligne : https://drive.google.com/file/d/1tCpNUqhFuLDSU6z56Hzq2XVJq6nRn563/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36326 [article]

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Benefits of astaxanthin for anti-pollution / Alexander Pototschnik in GLOBAL PERSONAL CARE, Vol. 23, N° 10 (11/2022)  

[article]  inGLOBAL PERSONAL CARE > Vol. 23, N° 10 (11/2022) . - p. 35-37 Titre : Benefits of astaxanthin for anti-pollution Type de document : texte imprimé Auteurs : Alexander Pototschnik, Auteur Année de publication : 2022 Article en page(s) : p. 35-37 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Actifs anti-pollution Anti-inflammatoires Antioxydants Astaxanthine Dermo-cosmétologie Espèces réactives de l'oxygène Ingrédients cosmétiques Lumière bleue Peau -- Soins et hygiène Stress oxydatif Index. décimale : 668.5 Parfums et cosmétiques Résumé : Astaxanthin, a reddish pigment from the carotenoid family, is extracted from the alga Haematococcus pluvialis and considered the strongest naturally occurring antioxidant. To minimise long-term skin damage associated with pollution, astaxanthin can be used as a second-line protection. Its antiinflammatory activity has been known for a long time and has been confirmed by numerous studies. Especially for cosmetic products, BDI-BioLife Science has developed its own raw material containing 5% of astaxanthin. The properties of the red diamond have been substantiated by in vivo and in vitro proof of efficacy. While its effect against blue light-induced stress has already been proven in preliminary studies, the current research takes a closer look at the issue of blue light. Note de contenu : - The red diamond amongst radical scavengers - Blue light radiation as part of the pollution - Efficacy of astaxanthin on blue ligh-stressed human ex vivo skin - Material and methods - Fig. 1 : Astaxanthin acts against oxidative stress and ROS - Fig. 2 : Classification of light by penetration depth - Fig. 3 : Degradation of profilaggrin En ligne : https://drive.google.com/file/d/1d_QXs-pGKRYUOIxJmBJSSGLyxfshwfUg/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38704 [article]

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