Growth Peptides for Bodybuilding: Expert Insights & Protocols R2 Medical Clinic Once daily administration of CJC 1295, a long acting growth hormone releasing hormone (GHRH) analog, normalizes growth in the GHRH knockout mouse American Journal of Physiology Endocrinology and Metabolism American Physiological Society Safety and Efficacy of Approved and Unapproved Peptide Therapies for Musculoskeletal Injuries and Athletic Performance[v3] Preprints.org Tesamorelin vs. Sermorelin: Peptides to Boost HGH