b12 injection is iv or im Vitamin B1, B2, B6 & Injections B12 IM Injection | Irvine
Description
Cyanocobalamin (B12) 1000 mcg with sodium chloride 0.8% w/v and benzyl alcohol 1.5% v/v (preservative)

In some cases, tendonitis can occur as a result of vaccination

By September I hit 169 pounds and honestly my skin looks way better than friends who lost similar weight without peptide support

If you're concerned about a meaningul deficiences, talk to your doctor about your symptoms first
