Just ordered my second bottle, been using it for a month now and have noticed my lifts have been improving faster than usual. My 1 rep max bench went up 10lbs and Ive added an extra rep to my working weight for most of my lifts. I've also noticed my sleep and recovery has improved. Only thing is this stuff is a little pricey but I'd say it's worth it and works better than other natural test boosters, and their prices are more reasonable compared to other deer antler velvet extracts.