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Nanotechnology and Anti-Ageing Skin Care
Published in Dilip Ghosh, Pulok K. Mukherjee, Natural Medicines, 2019
B. Fibrich, I.A. Lambrechts, N. Lall
Current skin care therapies have been shown to have harmful effects on the skin due to the presence of active ingredients such as mono-, di-, and triethanolamines, and sodium laureth sulphate that could be irritating to the skin and result in adverse reactions such as photo-allergic reactions and allergic contact dermatitis (Ganesan and Choi 2016). Recently the potential use of traditional herbal medicines in skin care products has become a subject of intense research. Traditional herbal medicine provides a largely unexplored source of useful actives for the development of modern skin care formulations. Several advantages have been linked to the use of natural skin care products because they are hypoallergenic and are readily absorbed by the skin (Wang et al. 2006; Mukherjee et al. 2011). One of the most ancient traditional medicines, dating to 5000 BCE, originates from India and is known as Ayurveda. Ayurveda uses about 200 herbs, minerals and formulations to promote healthy, younger-looking skin. The use of natural skin products has become popular in Asia and many other countries due to its significant ability to treat and prevent skin ageing (Mukherjee et al. 2011, 2012).
Cleansing of Hair
Published in Dale H. Johnson, Hair and Hair Care, 2018
Alkyl ether sulfates are prepared by sulfation of an ethoxylated ether (174). Compared to alkyl sulfates, alkyl ether sulfates are milder and less irritating to the eyes, but their lathering and viscosity characteristics are believed to be not as good. For these reasons, blending of an alkyl sulfate and an alkyl ether sulfate is sometimes practiced in shampoo formulations (88). The commonly used alkyl ether sulfates are sodium laureth sulfate and ammonium laureth sulfate.
The Dental Connection to Health
Published in Aruna Bakhru, Nutrition and Integrative Medicine, 2018
Alyse Shockey, Lisa Marie Samaha, Dawn Ewing
These create the foaming action of toothpaste using sodium laureth sulfate (SLES), ammonium laureth sulfate (ALES), sodium lauryl sulfate (SLS), and ammonium lauryl sulfate (ALS). They are known as skin irritants, hormone and endocrine disruptors, and suspected gene mutagens and carcinogens.
Dermocosmetics: beneficial adjuncts in the treatment of acne vulgaris
Published in Journal of Dermatological Treatment, 2021
Elena Araviiskaia, Jose Luis Lopez Estebaranz, Carlo Pincelli
Acne can be aggravated by aggressive cleansing or by using a cleanser with an unsuitable pH (4,79). A dermocosmetic cleanser with a pH close to that of normal skin, will be less irritating (4) and may increase patient adherence to the treatment regimen. Alkaline soaps increase the pH of the skin surface, which can adversely affect the repair mechanism of the skin barrier (80,81), and lead to irritation (82). Soap has also been shown to alter the skin surface and increase TEWL (81). When compared with an acidic syndet bar, soap caused peeling, dryness and burning (83,84). One study assessed the degreasing effect and skin tolerability of a botanical face cleanser with hops, willow bark extract and disodium cocoyl glutamate as a mild cleansing agent compared with a standard face cleanser containing sodium laureth sulfate (SLES) (85). Both cleansers were applied to 21 healthy volunteers with normal to oily skin, twice a day for 15 days in a split-face manner. It was found that the botanical skin cleanser significantly reduced the sebum level (p < .01) (85). Additionally, a continuing degreasing effect on Day 17 (following a treatment break of 48 h) was observed compared with the SLES containing cleanser, where the sebum level increased on Day 17 (85). Although neither of the cleansers caused skin irritation, skin cleansers without SLES may be more suitable for use on sensitive skin (85).
Evaluation of topical econazole nitrate formulations with potential for treating Raynaud’s phenomenon
Published in Pharmaceutical Development and Technology, 2019
Dherya Bahl, Saloni Daftardar, Rinda Devi Bachu, Sai H. S. Boddu, Nezam Altorok, Bashar Kahaleh
Oleic Acid NF (Lot No. UV0230) was obtained from Spectrum Chemical (Gardena, CA). Butylated Hydroxyanisole (BHA) NF (Lot No. 2EC0250) was obtained from Spectrum Chemical. Ethylenediaminetetraacetic acid (EDTA), Disodium salt dehydrate, 99+% (Lot No. A0244379) was procured from ACROS (Fair Lawn, NJ). Propylene Glycol USP/FCC (Lot No. 115135) was purchased from Fisher Scientific (Pittsburgh, PA). Ethanol 190 Proof (Lot No. 223512) was supplied by Decon Labs, Inc. (King of Prussia, PA). Hydroxypropyl methylcellulose (HPMC) (Methocel® E4M premium CR) (hypromellose USP) (Lot No. C145201) was provided by PCCA (Houston, TX). Versabase® Cream (Lot No. 6654449) and PCCA Lipoderm® Activemax were provided by PCCA. Dimethyl Sulphoxide (DMSO) HPLC grade (Lot No. 092056) was procured from Fisher Scientific (Pittsburgh, PA). Glycerin USP (Lot No. 2EG0467) was supplied by Spectrum Chemical. Econazole Nitrate powder (Lot No. P11B013) was procured from Alfa Aesar (Ward Hill, MA). Sodium Laureth Sulfate (SLES), 100% pure (Lot No. 16134), was procured from Nature’s Oil (Aurora, OH). Sodium chloride (Lot No. 075134) was provided by Fisher Scientific (Pittsburgh, PA). Polyethylene glycol 400, 100% (Lot No. 2603104), was supplied by Hampton Research (Aliso viejo, CA). High Performance Liquid Chromatography (HPLC) solvents, including methanol (Lot No. 21063) and acetonitrile (Lot No. 18401) were purchased from Fisher Scientific (Pittsburgh, PA). All solvents used were of analytical grade and distilled deionized water was used throughout the study.
Evaluation of anionic surfactants effects on the skin barrier function based on skin permeability
Published in Pharmaceutical Development and Technology, 2019
Mana Okasaka, Koji Kubota, Emi Yamasaki, Jianzhong Yang, Sadaki Takata
Twelve anionic surfactant types were investigated. Sodium lauryl sulfate (Kao Co., Tokyo, Japan) and sodium polyoxyethylene lauryl ether sulfate (sodium laureth sulfate) (Kao) were examined as the sulfate series. Sodium laurate (NOF Co., Tokyo, Japan) was examined as the soap. Sodium lauroyl glutamate, sodium cocoyl glutamate, potassium cocoyl glutamate, and triethanolamine cocoyl glutamate (Ajinomoto Co., Ltd, Tokyo, Japan) were investigated as the glutamate surfactant series. Sodium cocoyl alaninate (Ajinomoto) was studied as the alaninate surfactant series. Sodium cocoyl sarcosinate (Nikko Chemicals Co., Ltd, Tokyo, Japan) was examined as the glycinate surfactant series. Sodium cocoyl methyltaurate (NOF), sodium taurate cocoyl methyltaurate (NOF), and sodium lauroyl methyltaurate (Nikko Chemicals) were included as the taurate surfactant series.