If he has at least two yrs of hard training under his belt then yes. If not WAIT. Sorry, this is something that bug's me, kids that don't have the patients to wait, so they get big, then they look like total ass shit when they come off. True story. I see it all the time. I've been lifting hard for years and then slowed it down a bit and still had regrets on whether or not to start. I did anyway and I look good, but I wish I waited 8 more weeks. lifes a bitch.