Moreover, it is very rare that any forms of vitamin B12 are found in plant-based foods, making a dietary supply of B12 difficult for vegans to obtain (see here: Vitamin B12 for Vegetarians and Vegans)
Getting the dose right matters: too little may do nothing, while more than needed wastes product without clearly improving results
In one rat study, BPC-157 administration promoted tendon fibroblast outgrowth, cell survival under stress, and cell migration through the FAK-paxillin signaling pathway
Whats happening: Collagen synthesis accelerates
Reported effects are mild and transient: Localized irritation or redness at injection site, Mild fatigue or transient headache during initial days, Rare gastrointestinal upset (nausea, stomach discomfort)
Many studies have been done to prove that hydroxocobalamin is a better form of vitamin B12, however, due to increased cost it is not used as often