July 2023 in “International Journal of Cosmetic Science” This article reviews how biopolymers are utilized in cosmetics, highlighting their biodegradable and non-toxic properties, recent structural developments, novel applications, and safety considerations in the formulation of skin, hair, and oral care products.
February 2026 in “Archives of Dermatological Research” In this study, microneedle-assisted delivery of polyglutamate significantly improved hair parameters, scalp symptoms, and quality of life in androgenetic alopecia patients, with no serious adverse reactions reported.
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March 2015 in “Journal of Microbiology and Biotechnology” This study found that ultra-high molecular weight poly-γ-glutamic acid promoted hair growth in telogenic C57BL/6 mice by inhibiting 5-alpha reductase activity and inducing the anagen phase.
January 2024 in “CRC Press eBooks” This study discusses the potential of microbial exopolysaccharides as safer cosmetic ingredients compared to synthetic chemicals like parabens and BHA, which may cause skin damage and cancer; exopolysaccharides offer benefits like antimicrobial and antioxidative effects without harmful impacts.
January 2019 in “Springer eBooks” PLGA nanospheres in cosmetics improve skin and hair treatment effectiveness.