Not Sure. I will update this review as the months go by. The star rating may be temporary. But in the mean time, I can only assess what has happened. The procedure may be a success or a failure. I don't know, but here I go. I went to the Silicon Valley Hair Institute to repair a previous procedure. The original Dr. comped the fee. I was examined by the Dr. and his staff. They assured me I was good to go, and that I would not have any issues other than the temporary shedding of the transplanted hairs. I also had my thyroid function checked as well as my blood for STD's, and I spoke to a dermatologist to see if I was fit for the procedure. My lab results were normal. I am healthy. Dr. Canales also checked my hair with a microscope and determined that I was a great candidate. Here are I am 2 months later, and large amounts of native hairs as well as the hairs from the previous transplant have fallen out. I am currently on Propecia, Rogaine, triamcinolone, and biotin and I was just prescribed oral minoxidil. Very nice guy, but I have received conflicting information, so I am not sure what to say. I am not sure what the failure rates for these procedure are, but I am certain that they are 100% if they are done correctly. At this point, I am just praying that the results come out as promised. Please let me know if you have any feedback. Thanks