TLDR PRP therapy is a safe and effective treatment for hair loss.
The study evaluated the effectiveness of platelet-rich plasma (PRP) therapy in treating androgenic alopecia, a common form of non-cicatricial hair loss in both men and women. Over 300 patients received PRP injections, and the results showed significant improvements in terminal hair mass, hair texture, anagen/telogen hair ratio, keratinocyte proliferation, and blood vessel density. More than 85% of the patients experienced very positive outcomes, indicating that PRP is a safe, well-tolerated, and effective treatment for androgenic alopecia.
45 citations,
March 2013 in “European Journal of Plastic Surgery” Injecting platelet-rich plasma is a safe and effective way to treat hair loss.
88 citations,
January 2013 in “Indian Journal of Dermatology, Venereology and Leprology” Minoxidil and finasteride effectively treat hair loss.
19 citations,
August 2000 in “International Journal of Dermatology” Minoxidil and finasteride can slow or halt hair loss, but may have side effects.
58 citations,
January 1987 in “Archives of Dermatological Research” EGF and FGF boost hair cell growth, hydrocortisone slows it, and minoxidil doesn't affect it.
138 citations,
August 1985 in “Journal of The American Academy of Dermatology” Minoxidil promotes hair growth in male pattern baldness.
2 citations,
January 2011 in “The Korea Journal of Herbology” Korean medicinal herbs in hair tonic and food increased hair growth in mice.
2 citations,
June 2004 in “PubMed” Carbamazepine caused hair loss in a man, which stopped after he stopped taking the drug.
12 citations,
February 2003 in “PubMed” 
2 citations,
May 1974 in “PubMed” The article described symptoms and treatments for four common hair problems but didn't give detailed information.
