Protein Blend: The protein blend used by Nitro Tech is pretty simple, only utilizing the protein from two different sources. Whey isolate and whey peptides. This is an important thing to look out for due to the fact that protein that comes from many different sources is actually dirtying the blend. When searching for protein powders you want to make sure that you are getting the purest blend possible for the best results. Whey isolate and whey peptides are easily digested by the body, allowing you to help your muscles grow and your body to recover at a quicker rate.