The reason athletes have become interested in peptides is that they serve as signaling molecules. Instead of taking, say, human growth hormone, you can take a peptide that tells your body to Tesamorelin Peptide: What It Really Does for Belly Fat, Cost, Dosage, and Daily Use in 2026 CJC 1295 Ipamorelin Dosage Protocol: The Complete Clinical Guide to Dosing, Cycling, and Injection Perfect B The Human Lab Rats Injecting Themselves with Peptides Office for Science and Society McGill University