I'm not sure! I will let you know in a few months I'm pulling the trigger on it. When I start all let you know if I get sides e.g. itchy/flaky scalp, headaches ect. I want it to work. I just started using saw palmetto 450mg x1 daily, I'm prone to headaches I had to stop finx due to that. I hope this combo works or after this blast I'm taking it down. Not bald but a tight fade. In the end I can only jack my body hair is just an accessory.