Been using it for about 2 weeks, results seem to be very good, the product does what's advertised and posted on reviews. The bad part is that its way too expensive. you pay $60 + shipping for a tiny bottle that is filled about 1/10 full of product. It says that there is 30 doses, but that is incorrect more like 15. (That's if your pump actually works). I Will not be re-ordering with a price per dose of $4.00. honestly this is priced more like a muscletech supplement