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

keratin hydrolysate L-amino acids aminobiotics nutricosmetic

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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research Role of Nutritional Supplements in Selected Dermatological Disorders: A Review

8 citations , September 2021 in “Journal of Cosmetic Dermatology”

Some diets and supplements might help with skin disorders, but their effectiveness varies and more research is needed.

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research Efficacy and Safety of L-Cystine Associated or Not to a Natural Keratin (Kera-Diet) Hydrolysate on Hair and Nails: Randomized, Placebo-Controlled, Clinical Trial on Healthy Females

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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

Research cited in this study

research Role of Nutritional Supplements in Selected Dermatological Disorders: A Review

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