They can range in length from just a few amino acids to several dozen, but no more than 50
Stable Gastric Pentadecapeptide BPC 157 as a Therapy and Safety Key: A Special Beneficial Pleiotropic Effect Controlling and Modulating Angiogenesis and the NO-System, Sikiric P, Seiwerth S, Skrtic A, Staresinic M, Strbe S, Vuksic A, Sikiric S, Bekic D, Soldo D, Grizelj B, Novosel L, Beketic Oreskovic L, Oreskovic I, Stupnisek M, Boban Blagaic A, Dobric I, Pharmaceuticals (Basel), Pharmaceuticals, 2025 Jun 19;18(6):928
Additional areas of active investigation include the peptide's potential effects on bone healing, where studies have reported accelerated fracture consolidation in animal models
However, there are typical starting points that are generally recommended by doctors