NCAA banned supplements

check into AdvoCare, good product meets both NCAA and MLB standards. do some research on it. may be able to provide your son with a product that both works and is not harmful. if he has an good alternative it may put your mind at ease. chances are he is going to take something somewhere. 

Most products you find at GNC aren't NCAA approved. Wouldnt  exactly say there's much danger in using these...just not NCAA approved. Your average dude lifting at your local gym isn't using a NCAA approved Whey Protien & Creatine but it's a normal product To use.

Probably just HS kids using Whey, Creatine, T-Boosters or Jacked 3D or similar stuff that may not have the NCAA stamp. NCAA is very restrictive and correct me if I'm wrong but doesn't even allow energy drinks due to the caffeine.

I wouldn't think too much of a kid using an off the shelf product not NCAA stamped In HS. Those guys just need to know you won't have those legal but not NCAA approved products to lean on in college. 

playball,

I understand where you are coming from.  This is a situation we dealt with.  We were looking for products for my son and some friends with older kids pointed to the dangers of most products and helped us in right direction.

We have tried to do the same with others.  Some parents want to listen and some don't care.  Seriously; many parents will just flat out not care.  As long as their son is gaining weight or getting stronger or what have you; they won't care.

Sad isn't it. 

My son has used Advocare products and I agree...high quality products that are safe. 

Have you son check with his coach.  The coach will go/no-go protein shakes, etc...