Thanks guys for the two responses, but I would like to know what are the differences between the S4 and the SR9009? Is PCT required for these supplements?
I'm currently training some MMA fighters and Boxers in strength & conditioning. Two of them are having trouble with adjusting to my style of dieting and training. They're used to cutting weight 5 to 7 days before a fight. On the other hand, I've had them dropping weight gradually over an 8...