Radiance unleashed with hectorite tech / Silke Valentin-Burzynski in GLOBAL PERSONAL CARE, Vol. 24, N° 4 (04/2023)  

[article]  inGLOBAL PERSONAL CARE > Vol. 24, N° 4 (04/2023) . - p. 41-44 Titre : Radiance unleashed with hectorite tech Type de document : texte imprimé Auteurs : Silke Valentin-Burzynski, Auteur ; Jens Müller, Auteur Année de publication : 2023 Article en page(s) : p. 41-44 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Clarté de la peau Colloides Dermo-cosmétologie Détoxication métabolique d'une substance Facteur de protection solaire Hectorite Henné -- Détoxication Ingrédients cosmétiques Produits hydratants Index. décimale : 668.5 Parfums et cosmétiques Résumé : A hectorite skin glow gel offering a proprietary and unique blend of well-known skin care actives with proven benefits. Note de contenu : - Detoxification power of hectorite - Formulating for the skin glow trend - Formulation versatility and concept creation - Fig. 1 : CEC (in milliequivalents of cations/100 g soil) of different clay materials - Fig. 2 : Ideal and stable suspension of actives, powders and pigments within the hectorite network - Fig. 3 : Organically modified hectorite improves film thickness on application due to its excellent rheology - Fig. 4 : Ideal pigment dispersion with 5% hectorite skin glow gel leading to a uniform coverage and skin tone - Fig. 5 : Prolonged moisturization enabled through the hectorite skin glow gel in a W/O emulsion at 5% use level applied on the lips. The organically modified hectorite stabilizes water droplets in the formulation to prevent them from evaporation - Fig. 6 : Unique active matrix of the hectorite skin glow gel - Fig. 7 : Increased moisturization over baseline (100%) with 5% hectorite glow gel in a W/O emulsion in a 30 day long in vivo study on the lower legs (4 subjects, both left and right leg), percentage change of GrayIndexT values from MoistureMap MM 100 readings (Courage & Khazaka) - Fig. 8 : Pigmented formulation with/without 5% hectorite skin glow gel after 1 month at 50°C - Fig. 9 : Anhydrous stick hardness and flexibility positively impacted by organically modified hectorite - Fig. 10 : in vitro SPF boosting and wash off resistance with organically modified hectorite. Sunscreens applied on HD6 PMMA plates, initial SPF reading, SPF reading after washing according to ISO and FDA guidelines En ligne : https://drive.google.com/file/d/1fDRzR0El2c8N7eY05j-FEDiTUeEIEyMC/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39408 [article]

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Stabilisation and detoxification of henna (Lawsonia inermis L.) extract for hair dye cosmetics by spray-drying encapsulation / Ying Tang in COLORATION TECHNOLOGY, Vol. 135, N° 6 (12/2019)  

[article]  inCOLORATION TECHNOLOGY > Vol. 135, N° 6 (12/2019) . - p. 439-450 Titre : Stabilisation and detoxification of henna (Lawsonia inermis L.) extract for hair dye cosmetics by spray-drying encapsulation Type de document : texte imprimé Auteurs : Ying Tang, Auteur ; Wendan He, Auteur ; Shuyan Yang, Auteur ; Lei Liu, Auteur Année de publication : 2019 Article en page(s) : p. 439-450 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Cheveux -- Teinture Colorants végétaux Cosmétiques Encapsulation Extraction (chimie) Henné -- Détoxication Séchage par pulvérisation Stabilité au stockage Index. décimale : 667.3 Teinture et impression des tissus Résumé : Henna (Lawsonia inermis L.) leaves have been widely used as a natural plant colorant for hair dyeing and body art. However, the utilisation of henna dye extract in commercial colour cosmetics is compromised by its potential harmful effects to humans. This study demonstrates that spray-drying encapsulation using maltodextrin and gum arabic as biocompatible polymeric carriers can be used as a promising strategy to detoxify henna dye extract while maintaining its hair dyeing efficiency for cosmetics. Henna extract-loaded microcapsules with an average particle size of 4.1 µm were prepared with an excellent encapsulation efficiency (98.4%) and a negative zeta potential (-34.4 mV). The morphology and physicochemical properties of the microcapsules were characterised by comparison with a spray-dried sample of neat henna extract. The in vitro toxicological results showed that the microencapsulation process significantly reduced the contact toxicity of henna extract towards human epidermal keratinocytes as well as to the eyes and skin. The encapsulated henna extract also exhibited improved storage stability at three different temperatures (4, 25 and 50°C) for 14 days. Furthermore, the microcapsules demonstrated satisfactory hair dyeing efficiency as natural colorants with good colour fastness towards light and washing. Note de contenu : - EXPERIMENTAL : Materials - Henna dye extraction - Spray-drying conditions - Characterisation of HE-loaded - Storage stability - Assessment of in vitro toxicity - Dyeing efficiency and colour fastness - Statistics - RESULTS AND DISCUSSION : Microcapsules characteristics - Storage stability at different temperatures - In vitro toxicity - Hair dyeing efficiency and colour fastness DOI : 10.1111/cote.12433 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12433 Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33376 [article]

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