bpc 157 tendon healing rat study BPC-157: Repair and More Stable Gastric Pentadecapeptide BPC 157
Description
As hypoxia of the wall of the vein continues the number of vasa vasora should also increase in number in order to provide nutrition and oxygen to the dilated hypoxic vein wall

Int J Mol Sci (2021) 22(15):8309

That makes it pretty impractical for multi-day peptide protocols, which is exactly why BAC water is the overwhelming default

Collagen Type I, II and III (most companies only include I and III)* [R, R, R]