91 citations,
April 2011 in “Journal of Ethnopharmacology” Polygonum multiflorum extract helps grow hair by activating certain hair growth signals in mice.
75 citations,
October 2016 in “Genes & Development” Cells in hair follicles help create fat cells in the skin by releasing a protein called Sonic Hedgehog.
53 citations,
May 1986 in “Clinics in endocrinology and metabolism” Androgens like testosterone affect hair growth and oil production differently across body parts and individuals.
37 citations,
March 2010 in “British Journal of Dermatology” Oestrogen and thyrotropin-releasing hormone affect prolactin and its receptor in human skin and hair, suggesting new treatment options for related conditions.
28 citations,
February 1999 in “Archives of Dermatological Research” Finasteride potentially treats hair loss by reducing DHT production.
24 citations,
July 2011 in “British Journal of Dermatology” Men with hair loss have more DNA changes in back-of-head hair follicles, possibly protecting them from thinning.
19 citations,
November 2018 in “Nutrients” Annurca apple extract may protect mouse hair from damage by chemotherapy and could help treat hair loss without promoting cancer growth.
19 citations,
January 2013 in “International journal of medical sciences” Increasing Wnt5a in mice skin delays hair growth but doesn't stop it.
18 citations,
October 2018 in “Nutrients” Annurca apple extract promotes hair growth by changing hair follicle metabolism to boost keratin production.
16 citations,
December 2006 in “Expert Review of Dermatology” Hair follicles are essential for skin health, aiding in hair growth, wound healing, and immune function.
13 citations,
January 2022 in “Stem cell reviews and reports” Mouse stem cells from hair follicles can improve wound healing and reduce scarring.
13 citations,
July 2004 in “Skinmed” Common types of non-scarring hair loss have various causes and treatments, but more effective solutions are needed.
5 citations,
January 2016 in “Genetics and Molecular Research” Researchers found 617 genes that behave differently in cashmere goat hair follicles, which could help understand hair growth.
4 citations,
January 2017 in “Biological & pharmaceutical bulletin” Inhibiting ALOX12 can help hair cuticle maturation by increasing S100A3 citrullination.
4 citations,
January 2014 in “The Scientific World Journal” Red deer antler extract helps hair grow by extending the growth phase and increasing cell growth in hair follicles.
3 citations,
April 2014 in “Journal of Dietary Supplements” CARI ONE helps start hair growth and makes hair follicles bigger and more numerous.
March 2023 in “Clinical, cosmetic and investigational dermatology” IL-33 is linked to hair follicle damage in psoriasis and could be a treatment target for hair loss in this condition.
June 2005 in “Key Engineering Materials” Using hydrogels to slowly release growth factors can effectively boost hair growth in mice.
21 citations,
November 2017 in “Archives of Dermatological Research” Higher enzyme levels found in women with hair loss, suggesting hormone imbalance.
35 citations,
March 2005 in “Journal of Investigative Dermatology” Potassium channel openers like minoxidil help hair grow by acting on hair follicles.
12 citations,
July 1993 in “The journal of investigative dermatology/Journal of investigative dermatology” Certain sex hormones and antiandrogens can either slow down or speed up the growth of human hair follicle cells depending on their concentration.
10 citations,
November 2010 in “Pigment Cell & Melanoma Research” Only skin melanocytes, not other types, can color hair in mice.
7 citations,
January 2016 in “Laboratory Investigation” TR3 is mainly found in hair follicle stem cells and may be involved in hair loss.
17 citations,
October 2003 in “Brazilian Journal of Medical and Biological Research” The gene SDR5A1 is found in scalp hair of both hirsute and normal individuals, but it does not explain differences in hair growth.
2 citations,
December 2022 in “International journal of molecular sciences” Plucked hairs can be used instead of skin biopsies to study hair traits because they contain specific cells related to hair.
1 citations,
January 2012 in “International journal of trichology” Sheep hair follicle cells can grow a lot but need the dermal papilla to do so.
June 2017 in “Journal of the American Academy of Dermatology” Plucked hair can help diagnose pemphigus vulgaris early.
211 citations,
April 2013 in “Development” More dermal papilla cells in hair follicles lead to larger, healthier hair, while fewer cells cause hair thinning and loss.
92 citations,
November 2006 in “Proceedings of the National Academy of Sciences of the United States of America” BMP signaling controls hair follicle size and cell growth by affecting cell cycle genes.
45 citations,
August 2013 in “Facial Plastic Surgery Clinics of North America” Using sharp tools and the right techniques in hair transplant surgery leads to less damage to hair follicles.