There's a lot of confusion around peptides and muscle. Here's how I actually think about it. Most peptides don't build muscle directly. They improve the systems that allow muscle to grow. First, Injuries, Injections, and Internet Forums: A Qualitative Study of Reddit User Perspectives on Peptide Therapy After Orthopaedic Surgery Ashley E. Rosenberg, Bennett Taylor, Rhea D. Rasquinha, Haneef Khan, Matthew Quinn, Stephen Tesamorelin Ipamorelin Before And After Reddit Doctor Breaks Down the Peptide Craze Science, Legality & the FDA War Tesamorelin wikidoc