Creatine fucks with my stomach and makes me shit like a duck. However glutamine and taurine work well for me. The prohormones were terrible, I'd loose everything in about 4 weeks. The best prohormone i found was mag10. I put on 20lbs in 12 weeks and took biotests anti-e's and did well with that. Most mass building supplements should be taken in conjunction with aas or without.