PRP and microneedling are generally safe but can cause rare severe complications.
14 citations
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September 2015 in “PubMed” Alopecia areata can be managed with various treatments, and severe cases should be referred to dermatologists.
140 citations
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December 2017 in “Journal of Controlled Release” Microneedles improve drug delivery in various body parts, are safe and painless, and show promise in cosmetology, vaccination, insulin delivery, and other medical applications.
January 2019 in “Springer eBooks” Platelet-rich plasma therapy may have benefits and is generally safe, but more research is needed to confirm its effectiveness and safety.
50 citations
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November 2010 in “Plastic and Reconstructive Surgery” Botox increased hair count in men with baldness and might work by improving scalp blood flow.