231 citations,
October 1999 in “Journal of Clinical Investigation” Activating the Sonic hedgehog gene in mice can start the hair growth phase.
176 citations,
January 2003 in “Journal of Investigative Dermatology” Bone Morphogenetic Proteins (BMPs) help control skin health, hair growth, and color, and could potentially be used to treat skin and hair disorders.
86 citations,
August 2000 in “Pigment cell research” Melanocyte activity in hair follicles is linked to the hair growth cycle, being active in growth phases and inactive in rest phases.
81 citations,
October 2014 in “The journal of investigative dermatology/Journal of investigative dermatology” Certain genes control the color of human hair by affecting pigment production.
69 citations,
April 2010 in “Dermatologic Surgery” Bimatoprost is a safe and effective treatment for making eyelashes longer, thicker, and darker.
62 citations,
December 1941 in “Experimental biology and medicine” Eating phenylthiocarbamide made all the rats' hair go gray, but some returned to their original color after stopping.
46 citations,
April 2014 in “PLOS ONE” Gray hair may be caused by lower antioxidant activity in hair cells.
45 citations,
April 2016 in “Journal of Dermatological Science” The Wnt/β-catenin pathway can activate melanocyte stem cells and may help regenerate hair follicles.
41 citations,
December 2018 in “Experimental Dermatology” Understanding how melanocyte stem cells work could lead to new treatments for hair graying and skin pigmentation disorders.
31 citations,
November 2015 in “PloS one” Reducing Tyrosinase prevents mature color pigment cells from forming in mouse hair.
29 citations,
January 2021 in “Journal of Investigative Dermatology” Fat under the skin releases HGF which helps hair grow and gain color.
28 citations,
December 2019 in “Skin appendage disorders” Some medications might reverse gray hair, especially those that reduce inflammation or stimulate pigment production, and vitamin B might help.
26 citations,
February 2022 in “Journal of pineal research” Melatonin affects skin and hair color and protects skin cells, with potential benefits for hair growth and skin health.
23 citations,
January 2020 in “Central-European Journal of Immunology/Central European Journal of Immunology” Alopecia areata, a type of hair loss, is likely an autoimmune disease with a genetic link, but its exact cause is still unknown.
23 citations,
April 2010 in “Clinical, cosmetic and investigational dermatology” Bimatoprost ophthalmic solution 0.03% safely and effectively increases eyelash growth when applied to the upper eyelid.
21 citations,
January 2019 in “Experimental dermatology” Light therapy using helium-neon lasers can help restore skin color in vitiligo by promoting skin cell growth and movement.
20 citations,
January 2015 in “Current problems in dermatology” Graying hair happens due to aging and might be delayed by new treatments.
17 citations,
February 2015 in “Phytochemistry Reviews” Southeast Asian herbs show promise for skin and hair care, but more research is needed to confirm their effectiveness in cosmetics.
16 citations,
November 2005 in “The journal of investigative dermatology. Symposium proceedings/The Journal of investigative dermatology symposium proceedings” Hair color is determined by different melanins and changes with age.
15 citations,
August 2014 in “Journal of dermatological science” Pueraria thunbergiana extract may help prevent hair from turning gray.
14 citations,
July 2022 in “Nutrients” Vitamin A is important for healthy skin and hair, influencing hair growth and skin healing, but UV light reduces its levels.
14 citations,
September 2017 in “General and comparative endocrinology” Barn owls with smaller black spots have higher testosterone levels, which might be due to genetic effects on hormone regulation rather than hormone effects on coloration.
12 citations,
May 2019 in “Journal of cosmetic dermatology” Effective treatments for premature hair graying still require significant research.
12 citations,
September 2018 in “International Journal of Cosmetic Science” Palmitoyl tetrapeptide-20 may help reduce hair greying and increase melanin production.
12 citations,
September 1997 in “PubMed” Vitamin D could be important for many skin functions and synthetic versions may treat various skin diseases.
11 citations,
May 2012 in “Genesis” Bmpr2 and Acvr2a receptors are crucial for hair retention and color.
10 citations,
July 2022 in “Dermatology and Therapy” Melasma's causes include genetics, sun exposure, hormones, and oxidative stress, and understanding these can help create better treatments.
10 citations,
May 2016 in “Journal of Dermatological Science” PDGF-BB helps young melanocytes grow but stops mature ones from growing, and it makes melanocytes more specialized.
10 citations,
May 2012 in “PloS one” Low ERCC3 gene activity is linked to non-pigmented hair growth.
9 citations,
July 2020 in “Experimental Dermatology” Topical L-thyroxine may help with wound healing and hair growth but should be used short-term due to potential risks.