A 2020 analysis of research peptides purchased online (Miseta et al., Analytical Chemistry) found a substantial proportion of products with purity below stated levels or with sequence errors
BPC-157 (Body Protection Compound-157) is a 15-amino acid peptide derived from a protein found in gastric juice
Some studies have suggested that topical minoxidil is just as effective, too
Tendon and connective tissue repair research: Examining fibroblast proliferation, collagen synthesis, and FAK pathway activation in preclinical musculoskeletal injury models
So, inject daily for three months, and only then gauge how you feel
For these patients, oral B12 supplementation (1,000-2,000 mcg daily sublingual methylcobalamin) provides comparable B12 repletion without injection