53 citations
,
November 2006 in “Journal of Endocrinology” Prolactin slows down hair growth in mice.
20 citations
,
February 2004 in “Veterinary dermatology” Dog hair grows back in about 14 weeks after being clipped for surgery, and the season doesn't really affect this growth rate.
13 citations
,
June 1989 in “Pediatric clinics of North America/The Pediatric clinics of North America” The conclusion is that young women with excessive hair growth should be quickly tested for hormonal issues and treated to improve their social well-being.
4 citations
,
April 2001 in “European journal of cancer” Scalp cooling prevented hair loss in half of the patients, despite significant side effects.
3 citations
,
December 2018 in “Meta Gene” Certain gene variations increase male hair loss risk, influenced by hormone levels.
2 citations
,
December 2019 in “Veterinary Dermatology” Microneedling with platelet-rich plasma helps dog hair regrow faster than microneedling alone.
May 2025 in “Animal Bioscience” Inhibiting prolactin reduces hair follicle activation in cashmere goats.
January 2014 in “Journal of Pigmentary Disorders” Women's hair gets thinner and grayer as they age, with treatments available for hair loss and graying.
128 citations
,
January 1996 in “Journal of analytical toxicology.” Hair analysis can detect cocaine use but doesn't accurately show the amount or timing of use.
113 citations
,
July 2015 in “Journal of Cosmetic Dermatology” Platelet-rich plasma may help with hair growth and skin quality but more research is needed to confirm its effectiveness.