The subcutaneous approach here is this sites framing, not the established route [4]
The DoW instructions document also contains a section called Contractual Requirements
7: Masnec S, Kokot A, Kralj T, Zlatar M, Loncaric K, Sablic M, Kalauz M, Beslic I, Oroz K, Mrvelj B, Beketic Oreskovic L, Oreskovic I, Strbe S, Staresinic B, Slivsek G, Boban Blagaic A, Seiwerth S, Skrtic A, Sikiric P
BPC-157 (Body Protection Compound-157) is a 15-amino acid gastric pentadecapeptide known for its remarkable tissue healing and protective properties, while TB-500 (Thymosin Beta-4) is a 43-amino acid peptide that plays fundamental roles in cell migration, tissue remodeling, and wound repair