If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution
Cesarman E, Chang Y, Moore PS, Said JW, Knowles DM
Why intramuscular: Faster absorption Can handle larger volumes Some peptides work better IM Peptides sometimes used IM: TB-500 (can be either SubQ or IM) BPC-157 near injury sites (sometimes IM) Certain reconstituted peptides at higher volumes Needle angle: 90 degrees, needle goes deeper Which should you use
Safety: What is and is not known Animal safety data A 2020 preclinical safety evaluation by Xu and colleagues in Regulatory Toxicology and Pharmacology examined BPC-157 across multiple species mice, rats, rabbits, and dogs and reported no serious toxicity, no genotoxicity, and no embryotoxicity at doses evaluated