The Effects of an Oral Supplementation of a Natural Keratin Hydrolysate on Skin Aging: A Randomized, Double‐Blind, Placebo‐Controlled Clinical Study in Healthy Women

    October 2024 in “ Journal of Cosmetic Dermatology ”
    Francesco Tursi, Vincenzo Nobile, Enza Cestone, Ileana De Ponti, Anne Lepoudère, Renaud Sergheraert, Jean‐Philippe Soulard
    TLDR Taking natural keratin supplements improved skin, hair, and nails in women.
    A randomized, double-blind, placebo-controlled clinical study investigated the effects of oral supplementation with a natural keratin hydrolysate (FKH) over 90 days in healthy women. The results demonstrated improvements in the appearance of facial skin, hair, and nails. The study suggests that the free L-amino acids mix in FKH may serve as potential aminobiotics, offering a new perspective on nutricosmetic food beyond their traditional role as protein building blocks.
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