Usp labs has always been a good product. I still have 4 tubs of the original and my local gnc has 6 left and won't be getting anymore. Thanks FDA. But this stuff looks like their starting to slow down a bit on quality. Under dosing and riding the coat tails of jack3d andalong with the others that made them who they are. I hope this isn't going to be a trend. But some ore workouts work for some and not others. Jekyll and Hyde is way too strong for me but pump had is too weak. Just gotta find the right medium and switch up brands and cycle off. Also don't be dependent on a pwo.