- PRP has gained a lot of interest for treating hair loss conditions like male/female pattern baldness. It provides growth factors that may stimulate follicle regeneration and new hair growth.- Treatment involves withdrawing a patient's blood, isolating the PRP, and injecting it into the scalp at areas of hair thinning. Multiple treatments 4-6 weeks apart are usually given.- Some dermatologists also offer PRP along with microneedling for better penetration or mix it with other compounds like stem cells.- Several small studies have shown PRP injections can increase hair count, hair thickness, growth rate, and overall coverage. Improvements seem most apparent around 3-6 months after treatment.- However, results are variable. A recent meta-analysis found an average increase of only 8 extra hairs per cm2 after PRP treatment. Younger patients and those with mild to moderate hair loss tend to have better outcomes.- PRP is generally considered safe with minimal side effects like headache or mild irritation. But robust clinical data on efficacy is lacking compared to proven hair loss treatments like finasteride and minoxidil.- Maintenance PRP treatments may be needed 2-3 times per year to maintain benefits. Combining it with medications or microneedling may enhance results.- Overall, PRP is a promising treatment for stimulating hair growth and slowing hair loss progression. But more standardized studies are still needed to determine optimal protocols. Consult a hair restoration specialist.