April 2026 in “Journal of Cosmetic Dermatology” Hair growth supplements show promise, but more research is needed.
January 2017 in “DR-NTU (Nanyang Technological University)” Keratin sponges are as biocompatible as collagen, but keratin gels are slightly less so.
GHK-Cu and propolis may help prevent scalp aging and hair loss.
July 2024 in “Skin Appendage Disorders” The supplement significantly improves hair density and appearance in people with hair loss.
December 2025 in “International Journal of Clinical Medical Research” Diet and gut health can improve skin, hair, and nails.
8 citations
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February 2005 in “International Journal of Cosmetic Science” Applying a special soy milk extract on skin can make it more elastic and hydrated.
1 citations
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June 2019 in “Current developments in nutrition” A combination of arginine silicate complex and magnesium biotinate improves hair and nail growth in rats.
9 citations
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September 2018 in “Journal of Photochemistry and Photobiology B-biology” A hair-growth formula with cystine and thiamin helps protect skin cells against UV damage and improves their growth.
July 2022 in “The journal of investigative dermatology/Journal of investigative dermatology” Increasing type 17 collagen reduces aging signs in skin cells caused by UV light.
1 citations
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July 2024 in “International Journal of Dermatology Venereology and Leprosy Sciences” Cysteine strengthens hair, and glutamine fuels hair growth.