This article explores the potential applications of polyglutamic acid in cosmetics, discussing its benefits for skincare and haircare, but reports no new experimental results.
7 citations
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September 2020 in “International Journal of Cosmetic Science” This study investigated the effects of wool-derived hydrolysed keratin peptides on relaxed textured hair and found that mid- and high-molecular weight peptides improved mechanical strength and reduced breakage in different humidity conditions.
233 citations
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February 2018 in “Polymers” This review examines the roles and benefits of chitosan in cosmetics and oral hygiene, highlighting its potential in the cosmeceutical market, but it reports no new results.
November 2022 in “The journal of investigative dermatology/Journal of investigative dermatology” This study found that a skincare product effectively prevented and reduced pollen allergen accumulation in hair follicle models by forming a protective film and exhibiting strong cleansing properties, suggesting its potential to protect skin from environmental elements that can lead to irritation and allergic reactions.
December 2020 in “Macromolecular Symposia” This study found that incorporating acrylic and methacrylic acid into poly(N-vinyl-2-pyrrolidone) copolymers improves film mechanical properties but negatively affects their interaction with keratin for hair care applications.