I would check with your federation to see what is banned and what is allowed. If it is a natural anabolic, it should be okay to use, but check first. I would just stick with something basic right now. Look into an ergogenic aid such as PowerMax XT. PowerMax XT provides you with a full dose of creatine, which any gym goer or athlete should be using. Creatine will help strength output.
I think you would benefit greatly from the betaine in at as well. It contains 2.5 grams, which is the amount used in most studies. In these studies, betaine was shown to increase the anabolic effect that training has on our body and that lean mass can be increased and possibly reduce fat. Being a powerlifter, you want to get stronger, but at the same time, you want the weight you can train with to correlate well with your body weight. I think betaine will help you with that.
http://www.ergo-log.com/the-anabolic-effect-of-betaine.html
http://www.ergo-log.com/betaine-gives-bodybuilders-more-muscle-and-less-fat.html
Also, being a powerlifter, you want your recovery to be top notch. I train heavy deadlifts two days after heavy squats. Sometimes it can be difficult to do that and I can only imagine how taxing it could be to do all three big lifts in the same session. L-Alanyl-L-Glutamine is dosed at 2.5 grams and will aid in recovery. Alanyl attached to glutamine helps the absorption and bioavailability of the glutamine.
This is a simple product which the ingredients work together to help aid you strength, performance, and recovery.
The aforementioned PowerMax XT as well!
