Hi!
I'm newbie on this.... I've been out of gym for almos a year. Now I came back. Before leave, I bought my stack (sustanon and deca); never used. I never used any anabolic before. Now that I came back for a month, when I should use the stack to gain some mass? I'm 6'1" and 170 pounds slim slim guy. Help me guys!!! I don't want to mess up or trash the stacks....
Thanks!