After reading great reviews on facebook, I wanted to try certified peptides. They delivered on time, prices are reasonable for the quality and no one can beat buy 2 get 1 free deals on some of their products. Some times they run 20% discount on top of that. The key point for me is the quality, the peptides work as they should and that's enough for me. No side effects or post injection pain or anything abnormal. I have placed few large orders with them and everything went smooth each time.