bpc 157 not fda approved peptide BPC-157 is one of the peptides that has been getting a lot of attention recently. It is a synthetic derived from a protein found in human gastric juice. In experimental research The Unregulated World of Peptides:

How often should I get Vitamin B12 injections

Quick Shots at Ascend Wellness deliver a concentrated dose of vitamins, amino acids, or nutrients either through a quick intramuscular injection or directly into an IV for faster, more complete absorption

With respect to adverse events, the only complaints were injection site pain which affected four patients of those receiving thrice-weekly injections and one patient of those with once-weekly injections, as well as headache which affected one person in each group [19]

A few people might notice a short burst of energy or feel a bit lightheaded afterward, but this goes away fast