Compatibility testing of colored cosmetics – A new tool for objective testing near infrared remission spectroscopy (NIR-RS) / M. Rohr in IFSCC MAGAZINE, Vol. 8, N° 1 (01-02-03/2005)

[article]  inIFSCC MAGAZINE > Vol. 8, N° 1 (01-02-03/2005) . - p. 11-15 Titre : Compatibility testing of colored cosmetics – A new tool for objective testing near infrared remission spectroscopy (NIR-RS) Type de document : texte imprimé Auteurs : M. Rohr, Auteur ; Nikolai Ernst, Auteur ; Annika Schrader, Auteur Année de publication : 2005 Article en page(s) : p. 11-15 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Cosmétiques -- Effets physiologiques Erythèmes Produits de beauté Spectroscopie infrarouge proche Tags : 'NIR-RS'  'Spectroscopie  infrarouge  proche'  UVB  'Compatibilité  de  la  peau'  Bioingénierie  'Réaction  érythémateuse'  'Bande  Rémission-absorption' Index. décimale : 668.5 Parfums et cosmétiques Résumé : Previous methods for skin compatibility testing of colored cosmetics were limited by their ability to detect erythema reactions (reddening) underneath non-transparent products. The objective of this study is to present a new spectroscopic method to quantify reddening of human skin in vivo below colored cosmetics (e.g. hair dye, lipstick, makeup). The skin compatibility of non-transparent cosmetic products was determined by detection of a remission band in the near-infrared spectral region. In this study a spectrophotometer with a short arc xenon lamp and a single monochromator on the excitation side as well as an emission monochromator with a near-infrared photodiode (NIR photodiode) on the detection side was used. To induce an erythema reaction different test areas were treated with a 1 molar solution of ammonia. Afterwards they were colored with a permanent oxidative hair dye or lipstick. Before the coloring procedure, the baseline state of the test areas was documented by measuring the remission in the range from 1050 nm to 1250 nm. This measurement was repeated after the erythema reaction had been covered by a colored cosmetic. The results of data analysis revealed a remission band at approximately 1150 nm that was directly linked to the intensity of the erythema reaction. Non-visible reddening of the skin thus becomes measurable with this new method regardless of the optical properties of the product tested. Get PDF (52K) Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=10462 [article]

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Skin model dermal irritancy testing of cosmetics / Karolina Bazela in PERSONAL CARE EUROPE, Vol. 3, N° 2 (06/2010)  

[article]  inPERSONAL CARE EUROPE > Vol. 3, N° 2 (06/2010) . - p. 31-33 Titre : Skin model dermal irritancy testing of cosmetics Type de document : texte imprimé Auteurs : Karolina Bazela, Auteur ; Renata Debowska, Auteur ; Irena Eris, Auteur Année de publication : 2010 Article en page(s) : p. 31-33 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Cosmétiques -- Effets physiologiques Cosmétiques -- Toxicologie Produits de beauté Tests cutanés Index. décimale : 668.5 Parfums et cosmétiques Résumé : The potential for cosmetic formulations ton induce skin irritation is an important consideration for cosmetics producers. Irritation potential may be predicted by in vitro systems, provided they are sufficiently complex to mimic the skin barrier in vivo. The objective of this work was to evaluate the dermal irritation potential of different cosmetic formulations using the human epidermis model, EpiDerm. Our study showed that in vitro tests, as an alternative to animal testing, allow for preliminary assessment of a cosmetic formulation's irritation potential. However, further studies are required to evaluate the usefulness of in vitro epidermis models to predict in vivo skin irritation. En ligne : https://drive.google.com/file/d/1p6sJp58EgYS6JA8pReRLQwuTHh3rVswu/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=13470 [article]

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