bad reaction to b12 injection Possible allergic injections?? : r/B12_Deficiency Vitamin B12 Allergies Are Rare
Description
Many peptides discussed on this site are unapproved research chemicals intended strictly for laboratory and preclinical use

However, the results fell short of expectations

For subcutaneous injections, the best site is your upper arm

AHK-Cu, by comparison, has been studied less extensively for skin applications

Very impressive service
