All hair growth treatments that work have some potential side effects. However, many popular hair loss medications have more concerning risks than PRP.  Finasteride side effects, for example, may include sexual dysfunction in men and foetal malformations and hormonal imbalances in women (which is why premenopausal women can’t use Finasteride).  However, topical Minoxidil may carry somewhat lower risks than PRP, given that it doesn’t break the skin. Moreover, some effective natural remedies, such as essential oils for hair growth can be even safer than PRP injections, as can certain non-invasive therapies, such as red light therapy for hair growth.