However you cut it, thinning or receding hair is a common problem for both men and women. Most people have approximately 150,000 hair follicles on their scalp, which go through growing, shedding, and resting cycles that change with age and might be affected by diet, illness, stress, or medications. Common non-surgical treatments include topical minoxidil, oral propecia, or application of the patient’s own platelet rich plasma (PRP) into the scalp. These treatments are often combined to get the maximum benefit. PRP, for instance, can improve hair growth by lengthening the growing phase and shortening the resting phase.