Studies examining ergogenic supplements found concerning rates of problems: 12% to 58% contamination, 30% containing incorrect amino acid sequences, and 65% exceeding safe endotoxin thresholds
So peptide pills would be susceptible to issues that already plague the supplement aislelike poor quality, contamination, safety concerns, and unverified claims
Look for HPLC purity testing and mass spectrometry confirmation of the correct molecular weight
Contraindications include known hypersensitivity to any component of the injection (including cobalt hypersensitivity), a history of severe reactions to thiamine/pyridoxine/cobalamin injections, and Lebers hereditary optic neuropathy (for B12-containing products)
Timing Optional Marker Creatine kinase (CK) Why it matters May be useful when muscle injury, hard training, or unusual muscle pain is present during a recovery-focused protocol