I scored a few of the big 90 serving tubs of X-tend BCAA's a while back and started really pounding them hard due to them being free and expiring soon and I loved them. I was taking A LOT however but was completely off at the time and dieting yet managed to put on about 2 lbs of lean muscle in a month. It would have been about $300 in BCAA's that I downed during that time in a little over a month so if you factor in price I think there are better supps and or additional $$ you could spend on food which would be a better bargain. Just my .02