Does Clean Lean Protein contain phenylalanine or aspartame?

Phenylalanine is an essential amino acid and a component of every complete protein source.

You may be thinking of the artificial sweetener aspartame. Aspartame is created from phenylalanine and aspartic acid. Phenylalanine and aspartame are quite different compounds. We do not use aspartame in any Nuzest products.