Safety and Efficacy of Approved and Unapproved Peptide Therapies for Musculoskeletal Injuries and Athletic Performance[v3] Preprints.org Prolactin a pleiotropic factor in health and disease Nature Reviews Endocrinology Ipamorelin and Reproductive Hormone Support for Optimal Health Sermorelin vs. CJC 1295 vs. Ipamorelin Livv Natural Interactions between exercise, environmental factors, and diet in modulating appetite regulating hormones: implications for athletes and physically active individuals Frontiers Metabolic effects of prolactin