It is detectable on a drug test, so you run the risk of testing positive if you use it
Annals of Medicine and Surgery
However, since most natural sources of vitamin B12 come from animal-based foods, if you follow a vegan or vegetarian diet, you may need to supplement your vitamin B12 intake
Unapproved peptide products, particularly those that are injected, carry significant safety risks, including contamination, infection or local tissue damage
Factors such as extreme temperature, pH, and exposure to light should be avoided to prevent denaturation and loss of biological activity [9, 10]
This gives the bodys endogenous repair signaling time to normalize between courses