b12 injection bruise purple bruising. has anyone experienced this 4-5 days after injection? I noticed it this morning. It has me worried. : r/Semaglutide Bruise at Injection Site :

In most food sources, B12 is bound to a protein molecule released by the metabolic activity of hydrochloric acid and other enzymes in the stomach

The most common ingredient in lipotropic injections is vitamin B12

Very rare to have any kind of reaction but just to be sure, we ask you to sit down for a few minutes

Purpose Ketorolac Injections are specifically formulated for the short-term management of moderate to severe acute pain , particularly after surgery, injury, or in emergency settings, where immediate pain relief is needed, and oral painkillers are not suitable or insufficient

Jiang, W

One way to find out is to get a comprehensive blood test done