Hell yes! I've been on test/deca for 5 weeks, already gained 16 lbs! It's awesome shit! Also the delivery is quick and the service, at least from my source, has been absolutely outstanding!!!! I don't know what else to say but I am so glad I've used it and so grateful for my source. The only difference I've seen between the Spectro and Pharmacuetical grade Test is a little more soreness after injection, Deca-no difference. However if you stack with Deca and combine them in the same syringe it's pretty much painless. Cheers!