Andro/Nandro

When I near my genetic limit, can any Andro or Nandro product take me past it? Also, which is the best one? I really can’t get my hands on Androsol or Nandrosol which really does suck. Also, what kind of precaution drugs should I stack with the Andro or Nandro?

The reason I’m asking this is because I think that I am nearing my genetic limit, and I want to avoid steroids or anything illegal.