May 2024 in “Proteome science” Bleaching damages hair by reducing the quality of keratin and keratin-associated proteins.
21 citations
,
October 2017 in “Cell death and disease” Sesn2 protects inner ear hair cells from damage by regulating certain cell survival pathways.
1 citations
,
June 2023 in “Skin Research and Technology” Hair-coating shampoos dye better initially, but hair-oxidation shampoos keep color longer and may damage hair more.
5 citations
,
June 2022 in “Biophysical Journal” TGF-β and TNF influence hair follicle cell fate, with TNF being more effective in triggering cell death.
1 citations
,
June 2023 in “Journal of Cosmetic Dermatology” Exosome treatment for hair growth is promising but not FDA-approved and needs more research on safety and how it works.
April 2025 in “Pharmaceuticals” APA is a promising new compound for repairing damaged hair, outperforming Olaplex® in strength and elasticity.
277 citations
,
July 2011 in “Journal of the Dermatology Nurses’ Association” The skin's layers protect, sense, and regulate the body's internal balance, but can be prone to cancer.
59 citations
,
September 2008 in “Journal of Burn Care & Research” Nitric oxide gel helps heal skin burns faster by improving skin growth, hair regrowth, and blood vessel formation.
Most ingredients in hair loss shampoos lack strong evidence of effectiveness.
April 2018 in “Journal of Investigative Dermatology” The supplement improved hair growth, strength, and moisture.
September 2017 in “Journal of Investigative Dermatology” HIF-1A may aid hair growth, Backhousia citriodora improves skin, autologous cells stabilize hair loss, infrared thermography assesses alopecia, and a new treatment preserves hair.
Hair can't be as strong as Rapunzel's because it's impractical to scale up due to defects.
CaBP1 and 2 are necessary for maintaining calcium currents and hearing in inner ear cells.
CaBP1 and CaBP2 are important for maintaining hearing by supporting continuous calcium currents and nerve signaling in the ear.
December 2017 in “Journal of Cosmetic Dermatology” Researchers found certain genes are overactive and others are underactive in men with early balding, which could help create new treatments.
233 citations
,
February 2018 in “Polymers” Chitin and chitosan are useful in cosmetics for oral care, haircare, and skincare, including UV protection and strength improvement.
9 citations
,
September 2018 in “Clinical, Cosmetic and Investigational Dermatology” One supplement improved hair loss and quality faster and more effectively than the other in treating telogen effluvium.
August 2025 in “International Journal of Advanced Research in Science Communication and Technology” Herbal shampoo cleans and improves hair without harmful effects.
July 2025 in “Scientific Reports” Fermented grapeseed oil effectively repairs and protects chemically damaged hair.
October 2024 in “Cosmetics” Afro-textured hair needs personalized care due to its unique genetic traits.
November 2023 in “International Research Journal of Modernization in Engineering Technology and Science” Herbal shampoos clean and improve hair naturally without harmful side effects.
Kerascalp hair serum was found to be safe and effective in improving hair growth and strength in people with mild to moderate hair loss.
5 citations
,
November 2024 in “Frontiers in Nutrition” LB-P9 supplements improve hair health and satisfaction without side effects.
January 2026 in “International Journal of Biological Macromolecules” Small KP peptide improves hair without reducing agents, while larger proteins need them for better results.
December 2025 in “Rapid Communications in Mass Spectrometry” Pepsin digestion improves accuracy in analyzing proteins in human hair.
788 citations
,
February 2007 in “Nature” The document concludes that skin stem cells are important for hair growth and wound healing, and could be used in regenerative medicine.
161 citations
,
August 2012 in “Seminars in cell & developmental biology” Hair growth and development are controlled by specific signaling pathways.
131 citations
,
March 2004 in “The American journal of pathology” Modulating BMP activity changes the number, size, shape, and type of ectodermal organs.
82 citations
,
February 2017 in “Cold Spring Harbor Perspectives in Biology” The TGF-β family helps control how cells change and move, affecting skin, hair, and organ development.
64 citations
,
January 2009 in “The International journal of developmental biology” Hair follicle stem cells are controlled by their surrounding environment.