15 citations
,
October 1936 in “Archives of Dermatology” Cystine is crucial for forming keratin in hair, wool, and nails.
55 citations
,
June 1987 in “PubMed” Cyclosporin A significantly increases hair growth in certain areas of mice.
January 2019 in “Proceedings for Annual Meeting of The Japanese Pharmacological Society” Nε-(carboxymethyl) lysine delays hair growth by blocking a key protein.
11 citations
,
September 1996 in “Journal of applied polymer science” Potassium cyanide treatment changes hair's disulfide bonds, making it more elastic.
September 2025 in “OPAL (Open@LaTrobe) (La Trobe University)” SELP::KP improves hair strength, elasticity, and health, making it a promising hair cosmetic.
14 citations
,
November 2007 in “Journal of Dermatological Science” Vitamin C derivative may promote hair growth by activating specific genes.
87 citations
,
September 2012 in “Journal of Cell Science” Keratins are crucial for tissue strength, and mutations in keratin genes can lead to various diseases, highlighting the need for targeted therapies.
3 citations
,
December 2021 in “Materials today communications” A new film made from human hair supports skin cell growth better than collagen.
47 citations
,
December 2006 in “Therapy” The dietary supplement helped increase hair growth in women with hair loss.
20 citations
,
September 2018 in “Journal of colloid and interface science” Modified keratin binds better to hair, especially bleached hair.
98 citations
,
October 2012 in “Dermatologic Clinics” Eating the right nutrients can improve hair health, but taking extra supplements usually doesn't help unless you have a deficiency.
November 2020 in “Research Square (Research Square)” Keratin injections in mice can stimulate hair growth and might help treat hair loss.
8 citations
,
May 2020 in “International journal of biological macromolecules” Certain treatments can increase protein binding to natural hair but are less effective on permed hair.
November 2016 in “The Molecular Biology Society of Japan”
57 citations
,
June 2003 in “American Journal of Physiology-cell Physiology” Cyclosporin A helps mice grow hair by blocking a specific protein activity in skin cells.
12 citations
,
October 2007 in “PubMed” Keratin helps protect and strengthen hair, reducing damage and color fading.
March 2012 in “Daehan hwajangpum hakoeji/Daehan hwa'jangpum haghoeji” The cream with plant components increased skin collagen and the hair tonic promoted hair growth in mice.
146 citations
,
May 2002 in “The American journal of pathology” Cathepsin L is essential for normal hair growth and development.
August 2022 in “Clinical and Experimental Dermatology” Amino acid supplements may not be necessary for all women with chronic hair loss.
23 citations
,
September 1992 in “Archives of Dermatological Research” Cepharanthine and minoxidil promote cell growth and delay hair cell maturation.
January 2026 in “Cosmetics” Cacumen Platycladi extract can safely and effectively reduce hair loss and increase hair density.
July 2024 in “Journal of Investigative Dermatology” A peptide in shampoo can promote hair growth and improve hair condition.
June 1996 in “Journal of Dermatological Science” GHK-Cu and propolis may help prevent scalp aging and hair loss.
109 citations
,
September 2011 in “Human molecular genetics online/Human molecular genetics” New treatments targeting specific genes show promise for treating keratin disorders.
December 2023 in “European Journal of Pharmacology” C3G and Vitisin A may help prevent hair loss by blocking male hormones and stopping hair cell death.
Human hair keratins can self-assemble and support cell growth, useful for biomedical applications.
7 citations
,
January 1982 in “Acta agriculturae Scandinavica” Mink use L-methionine and L-cystine slightly better than natural amino acids for hair growth, but D-methionine is not effective.
March 2026 in “International Journal of Cosmetic Science” Pal-KCV peptide strengthens hair and reduces breakage by up to 52%.
May 2026 in “International Journal of Cosmetic Science” A plant-based treatment from Avena strigosa seeds effectively repairs and strengthens damaged hair.