Take-home message: - Peptides and assorted experimental drugs, like TB-500 and MK-677, are being recommended by fitness influencers to grow bigger muscles, lose fat, and recover from injuries faster - These drugs, many of which are claimed to boost levels of growth hormone, were studied in rodents and very small groups of human volunteers before being abandoned for not being beneficial or for causing unacceptable side effects - They are banned by the World Anti-Doping Agency and appear to be illegal in Canada and the United States, but can be purchased online
These are individual accounts, not clinical evidence, and results are not guaranteed.* On the positive side, reviewers describe experiences including improved comfort in areas they associated with daily activity, more consistent recovery between training sessions, and greater energy levels after consistent use
Gastrointestinal interaction involves stabilizing the stomach lining and promoting mucosal repair, which protects against irritation and ulcer formation
Temperature: Allow both the peptide vial and solvent to reach room temperature before reconstitution
BPC-157 in Orthopaedic Sports Medicine Systematic Review (PMC, 2024) A systematic review of BPC-157 in orthopaedic sports medicine published in PMC confirmed its pre-clinical evidence across fractures, tendon ruptures, ligament tears, and muscle injuries
Consequently, the riskbenefit evaluation of these peptides should include a comprehensive assessment of individual cancer risk