Anecdotally, 2 Pumps 2x/day on an 8 week Ostarine cut, I *thought* it was great. But I didn't do blood-work for that one - and I'm horrible at judging "feeling great" because I was in the low 300's ng/dl before starting it and always "felt great" anyway - +1 for clean living I guess. Recent bloodwork for another product supplying 100mg/ml, with 1 Pump Dermacrine added over the top (to help boost absorption) - only yielded a +20 point DHEA-S increase when applied 2 hours before a blood draw. I wouldn't skimp on the dose, and I'd get the $70 DHEA-S test to make sure of what it's doing. I'm at 2ml now and go for bloods in a week or two...we'll see what 214.4mg of TD DHEA does...