Growth factors and their peptide mimetics for treatment of traumatic brain injury ScienceDirect Lately I've been getting a lot of questions about cognitive support so I started testing a few things myself. One that's stood out is Dihexa, a peptide that works at the level It seems as if everywhere you turn, celebrities and influencers are talking up peptides. But what exactly is a peptide? Link to the full story in the comments. DIHEXA