bpc 157 methylene blue BPC-157 Weight Loss: Evidence & Safety Methylene Blue | Drug Information,

(For ultrashort 4 mm needles, a 90 angle without pinching may be used, but for typical 812 mm needles, 45 with pinched skin is recommended.) Do not aspirate for subcutaneous injections [16]

Beneath that surface similarity, however, they are genuinely different molecules: BPC-157 is a 15-amino-acid sequence isolated from a cytoprotective fraction of human gastric juice and characterized by Predrag Sikiric and the Zagreb group, while TB-500 is a 17-amino-acid synthetic fragment of the 43-residue actin-sequestering protein Thymosin Beta-4 (T4), originally isolated from calf thymus by Allan Goldstein and colleagues

Bpc-157, being smaller at 15 amino acids, tends to concentrate more heavily at injection sites while still providing some systemic benefits

The abdomen, upper thigh, and upper arm are the three primary injection sites