New hair regrowth therapies show promise but need more research.
April 2019 in “C&EN global enterprise” A microneedle patch can help hair regrow.
7 citations
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November 2018 in “Journal of the American Academy of Dermatology” White hairs often regrow in alopecia areata patches.
January 2025 in “bioRxiv (Cold Spring Harbor Laboratory)” Rhamnose may help hair growth and pigmentation, making it a potential treatment for hair loss.
April 2026 in “International Journal of Dermatology”
260 citations
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June 2011 in “Cell” Wnt signaling is crucial for pigmented hair regeneration by controlling stem cell activation and differentiation.
April 2025 in “Turkish Journal of Hematology” Nilotinib may cause gray hair to return to its original color.
10 citations
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September 1994 in “International Journal of Dermatology” Three Iranian men had reddish-brown facial pigmentation with no effective treatment.
August 2010 in “Journal of Investigative Dermatology” New hair regrowth model introduced, imiquimod kills skin cancer cells, T-cadherin loss makes skin cancer more invasive, no strong link between PTCH1 gene and skin cancer after transplant, and male teens more likely to have hereditary hair loss.
April 2016 in “Actas Dermo-Sifiliográficas” The document concludes that a unique target-like hair regrowth pattern in alopecia areata may be more common than thought and should be properly identified.
August 2014 in “Journal of clinical & experimental dermatology research” Platelet-released growth factors can treat hair loss by activating hair follicle stem cells, blocking certain pathways, and controlling inflammation and fibrosis.
18 citations
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January 2023 in “Nano Research” Red OLED therapy significantly boosts hair growth.
3 citations
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January 2021 in “Skin appendage disorders” Hair color is not a risk factor for developing alopecia areata.
13 citations
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December 2021 in “Wound repair and regeneration” Photobiomodulation helps hair regrow in injured skin by aiding cell movement and secretion.
13 citations
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August 2019 in “Biological & Pharmaceutical Bulletin” Certain flavonoids help grow back colored hair after skin injury.
18 citations
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August 2008 in “Journal of Investigative Dermatology” 17-β estradiol and prednisolone may speed up hair regrowth after chemotherapy.
1 citations
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June 2017 in “Nature Reviews Immunology” Immune cells called Treg cells are essential for hair growth and regeneration.
118 citations
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January 1992 in “Experientia”
Polyphenolic compounds may help hair growth but need more research.
21 citations
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November 2017 in “Scientific Reports” Different human hair follicle stem cells grow at different rates and respond differently to a baldness-related compound.
December 2025 in “International Journal of Research in Dermatology” The Ayurvedic treatment safely and effectively restores natural hair color by increasing black hair and reducing grey hair.
Polyphenolic compounds may help improve hair growth in non-scarring alopecia.
3 citations
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May 2010 in “Archives of dermatology” Herpes zoster infection can cause permanent hair color change in the affected area.
3 citations
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January 2016 in “Annals of Dermatology” Minoxidil was the most effective treatment for hair regrowth in rats compared to Aminexil or Kerium.
June 2020 in “The journal of investigative dermatology/Journal of investigative dermatology” Topical treatments led to hair regrowth in a man with linear morphea.
January 2026 in “Biochemical Pharmacology” 3 citations
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March 2013 in “PubMed” PRP speeds up hair growth and increases hair follicle density in mice.
23 citations
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November 2007 in “Actas Dermo-Sifiliográficas” Thyroid hormone (T3) may reverse gray hair by stimulating hair growth.
April 2023 in “Experimental Dermatology” Human dermal papilla cells can increase hair thickness and number in pigs with just one injection.
58 citations
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May 2004 in “British Journal of Dermatology” Diphenylcyclopropenone treatment helps hair growth in alopecia areata by promoting blood vessel growth and cell survival.