Shuang et al
Side effects are uncommon and may include mild temporary discomfort at the injection site or a slight sulfur odor, which resolves quickly
This longevity of research interest is itself informative: compounds that fail to replicate across independent laboratories typically disappear from the literature within a decade
Related research: For distinct compound, component, or formulation evidence and safety context, read BPC-157 Peptide: Benefits, Uses, Side Effects, Dosage, and Research and TB-500 Peptide: Benefits, Uses, Side Effects, Dosage, and Research
Vitamin B12 shots are generally considered to be safe and have no major side effects