June 2012 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” Prostaglandin D2, found in higher levels in bald scalps, stops hair growth and could be a target for treating hair loss.
January 2014 in “프로그램북(구 초록집)” Platelet-rich plasma treatments help hair growth in people with hair loss by increasing certain cell growth and protein levels.
July 2022 in “http://isrctn.com/” Adding a cosmetic gel with caffeine, taurine, and growth factors to standard hair loss treatments could improve results.
54 citations
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January 1984 in “Molecular and Cellular Biochemistry” 
September 2024 in “Journal of the American Academy of Dermatology” The compounded topical solution is safe, stable, and effective for personalized alopecia treatment.
March 2025 in “Journal of Cosmetic Dermatology” Combining surgery with growth factor injections effectively improves hair regrowth and scar management in Pseudopelade of Brocq.
2 citations
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January 2014 in “Hair transplant forum international” Platelet Rich Plasma (PRP) therapy can improve hair thinning in male pattern baldness patients, but more research is needed to confirm its effectiveness.
41 citations
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November 2015 in “The journal of investigative dermatology. Symposium proceedings/The Journal of investigative dermatology symposium proceedings” Diphenylcyclopropenone (DPCP) can help regrow hair in many alopecia areata patients but may cause side effects and relapses.
1 citations
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December 2020 in “International journal of molecular sciences” External factors can cause skin cancer cells that usually don't spread to grow and form tumors in mice.
14 citations
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January 2015 in “Skin appendage disorders” Misdiagnosis of LPP in AGA patients can cause hair transplant issues.