26 citations
,
January 2016 in “Annals of Dermatology” Ecklonia cava polyphenols help increase human hair growth and reduce hair loss.
46 citations
,
November 1963 in “Journal of Histochemistry & Cytochemistry” Arginine converts to citrulline in hair follicles as proteins harden.
6 citations
,
October 1988 in “Clinics in Dermatology” The molecular details of hair growth are not well understood.
5 citations
,
May 2023 in “Microbial Cell Factories” A stable, active version of a growth factor was made in bacteria, showing promise for medical use.
1 citations
,
January 1996 Cysteine and arginine are essential for hair growth and thickness.
32 citations
,
March 1988 in “International Journal of Dermatology” Retinoids can help treat skin disorders by improving the skin's outer layer.
June 2008 in “Experimental Dermatology” 17-beta estradiol and prednisolone may help regrow hair damaged by chemotherapy.
13 citations
,
December 2019 in “Nutrients” An apple-based supplement was found to stimulate hair protein production, which may help with hair growth.
13 citations
,
January 2002 in “Biological chemistry” Different conditions affect how hair proteins assemble, and certain mutations can change their structure.
43 citations
,
July 1994 in “Journal of Cell Science” Cross-linked proteins help maintain the structure of hair, feathers, and hagfish teeth.
23 citations
,
January 1981 Hair is mostly made of three protein types: helical, high-sulfur, and high-tyrosine.
2 citations
,
December 1994 in “International Journal of Cosmetic Science” Polymer complexation makes hyaluronic acid stick to hair better, enhancing its moisturizing effects.
23 citations
,
December 1988 in “British Journal of Dermatology” Topical cyclosporin may help delay hair loss.
November 2025 in “Journal of Investigative Dermatology” NUL-5 may boost hair growth by improving hair follicle health and structure.
12 citations
,
September 1982 in “Journal of Investigative Dermatology” 69 citations
,
January 2015 in “Cell & tissue research/Cell and tissue research” Keratin mutations cause skin diseases and could lead to new treatments.
May 2026 in “Colloids and Surfaces B Biointerfaces”
November 2022 in “Journal of Investigative Dermatology” The lotion with specific plant extracts effectively increased hair growth and improved hair cycle in subjects after 3 months.
51 citations
,
September 2012 in “Biomacromolecules” Disulfide bonds make keratin in hair stronger and tougher.
5 citations
,
February 2008 in “Experimental Dermatology” Cyclosporin A promotes hair growth in mice and increases a protein linked to hair growth, but it may not work the same way in humans.
November 2022 in “Journal of Investigative Dermatology” The medicine Cyclosporin A might cause excessive hair growth by reducing a protein that controls hair growth.
13 citations
,
March 2021 in “British Journal of Pharmacology” KY19382 helps regrow hair and create new hair follicles.
36 citations
,
July 2019 in “Journal of Materials Science Materials in Medicine” Human hair keratin helps repair nerve damage in rats.
1 citations
,
December 2013 in “Balkan Journal of Medical Genetics” Cystic fibrosis can cause unusual symptoms like hair color changes, which can improve with proper treatment.
39 citations
,
December 2013 in “Phytotherapy Research” Safflower (Carthamus tinctorius) extract helps hair grow and could be used in hair products.
1 citations
,
May 2016 in “Journal of Cosmetic Dermatology” Cytokeratins 15 and 19 may help track vitiligo treatment progress.
April 2009 in “The FASEB Journal” Keratin biomaterials from human hair help nerve regeneration by activating Schwann cells.
July 2016 in “Cancer Research” A topical lotion helped manage hair loss from chemotherapy by affecting cell death, inflammation, and collagen, with no side effects.
April 2017 in “Journal of Investigative Dermatology” The protein CTCF is essential for skin development, maintaining hair follicles, and preventing inflammation.
6 citations
,
October 1989 in “PubMed” Optimized conditions and specific treatments enhance the growth of hair cells from C3H mice.