46 citations
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November 1963 in “Journal of Histochemistry & Cytochemistry” Arginine converts to citrulline in hair follicles as proteins harden.
5 citations
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February 2021 in “Gels” HYDRO DELUXE BIO hyaluronic acid hydrogel is compatible with skin cells, may reduce inflammation, promote blood vessel growth, and protect against oxidative stress, suggesting it could help revitalize hair follicles.
February 2026 in “Medicina” Hyaluronic Acid Profhilo® reduces skin inflammation and nerve-related pain in atopic dermatitis.
122 citations
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January 2006 in “Molecular & Cellular Proteomics” Human hair contains many proteins, with some being highly abundant and modified.
April 2024 in “Current research in nutrition and food science” Taking an amino acid supplement improved skin, hair, and nail health in women.
13 citations
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May 2016 in “International journal of biological macromolecules” Keratin's mechanical properties are influenced by hydrogen bonds and secondary structure, and can be improved with the SPD-2 peptide.
April 2020 in “International Journal of Cosmetic Science” The study found that minor protein differences between curved and straight Japanese hair are unlikely to significantly affect hair structure.
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July 2024 in “Cureus” The treatment improved neck wrinkles and skin laxity.
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January 1993 in “Journal of Investigative Dermatology”
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January 2008 in “Journal of biomaterials science. Polymer ed.” The peptide GHK-Cu helps heal and remodel tissue, improves skin and hair health, and has potential for treating age-related inflammatory diseases.
July 2025 in “Journal of Investigative Dermatology” The new anti-aging ingredient improves skin hydration, elasticity, and reduces wrinkles.
May 2026 in “Iranian journal of pharmaceutical research” HAMA hydrogels speed up skin wound healing by reducing inflammation and boosting collagen production.
7 citations
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February 1998 in “Polymer journal” Keratin structure in hair is stable at pH 5-6 but disrupts between pH 6-7.
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December 2011 in “Biocatalysis and biotransformation” PDI helps restore over-bleached hair's strength and structure by attaching special peptides.
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January 1966 December 2000 in “日本組織細胞化学会総会プログラムおよび抄録集” 6 citations
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June 2016 in “Journal of cellular biochemistry” The Hr protein binds to DNA, interacts with p53, and affects cell cycle genes.
3 citations
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March 2016 in “Journal of Cosmetic Dermatology” GPIGS peptide increases thick hair growth in balding Japanese men.
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December 1970 in “Biochimica et Biophysica Acta (BBA) - Protein Structure”
1 citations
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August 2023 in “Biomolecules & therapeutics” HAPLN1 can promote hair growth and may help treat hair loss.
June 2024 in “Synthetic and systems biotechnology” A fragment of human type XVII collagen shows great potential for skin health and wound healing.
85 citations
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March 2008 in “Journal of Cell Science” The mutation causing Hutchinson-Gilford progeria syndrome leads to severe skin problems and early death in mice.
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August 2013 in “Experimental Dermatology” Hairless protein and putrescine regulate each other, affecting hair growth and skin balance.
September 2016 in “Toxicology letters” The 5050 MHA42MCS45 hydrogel blend is suitable for repairing load-bearing soft tissues.
Hydrophobic modifications make human hair less affected by water.
17 citations
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August 2018 in “BMC Genomics” The HOXC13 gene affects different hair proteins in cashmere goats in varied ways and is controlled by a feedback loop and other factors.
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July 2017 in “International Journal of Cosmetic Science” N‐AOHPA is a promising alternative to traditional surfactants for better hair conditioning.
1 citations
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January 1987 in “PubMed” The treatment helped promote hair growth in men with androgenetic alopecia.
January 2024 in “Archives of Biological Sciences (Beograd)” AP collagen peptides may help hair grow better and become stronger.
July 2024 in “International journal of agriculture and food sciences research.” The new fish peptide conditioner significantly improves and repairs damaged hair better than a commercial wheat protein conditioner.