Will PRP bring my hair back or is a hair transplant the only option? (photos)

We have not seen consistent results with PRP. Hair transplantation is likely the only option for restoring the hairline and increasing density in the crown. I would estimate from the photos using 2000 FUE grafts in the crown, and another 1500 FUE grafts for a conservative lowering of the hairline.

IMO you likely have androgenetic alopecia but you would be well advised to seek a specialist in hair loss to be sure. There are many approaches to treatment for this disorder because there is no one treatment that works for everybody. Having said that, only transplants will work on areas that have been bald for 5 years or longer as the hair bulb is presumed to be dead. The crown area is treatable. While there are testimonials for all sorts of treatments regardless if they are spurious, crazy, costly and in some cases harmful, you should be reassured that there are treatment options that will work for the majority of persons.   Some popular medications especially DHT blockers have serious side effects and should not be used, IMO, until after a trial of the following treatment approach:  Minoxidil (liquid), Low level laser light therapy, Vitamin D3 (4000 units) and PRP.  I recommend that all four treatment approaches be employed simultaneously and continued for six months before seeking alternative treatments.