Yes, PRP (Platelet Rich Plasma) is effective for treating hair loss. A 2015 placebo-controlled trial showed that PRP has positive therapeutic effects on androgenic alopecia without major complications or side effects. PRP treatment encourages hair growth by supporting cellular maturation and proliferation, but it works best on those with hormone-related baldness--also known as male or female pattern hair loss. Studies also indicate that PRP for hair loss is most effective when combined with oral, low-dose minoxidil tablets--a vasodilator that increases blood flow to hair follicles.