The hair follicles treated with PRF will immediately be reinvigorated and begin to grow new hair. The hair will strengthen and become thicker. Hair growth is a slower process, and results can be seen within three to six months. PRF treatments injection take approximately one hour, and during your consultation in our hair transplantation clinic , we will let you know an estimate on how many treatments you may need. Maintenance injections are typically recommended every 3-6 months. read full review »