That's why Queller says that you should look for the following (and it's even better when they're used in combination)
[DOI] [PubMed] [Google Scholar] 89.Luetic K., Sucic M., Vlainic J., Halle Z.B., Strinic D., Vidovic T., Luetic F., Marusic M., Gulic S., Pavelic T.T., et al
A standard SubQ injection into the abdominal fat, at least two inches away from the navel, serves as a purely systemic administration site
Clinics prescribe it off-label
Thymosin beta-4derived peptides such as TB-500 are widely investigated in wound-healing research because actin-mediated cellular migration is essential for epithelial repair, fibroblast movement, and structural reorganization of damaged tissue