Fun Fact Friday! Ever wondered Why is my B12 injection red? All B12s are cobalamins they have a cobalt atom at the center of a special ring shaped molecule called How Often Should You Have B12 Injections? Compounded Hydroxocobalamin (Vitamin B12) Injection How Often Can You Get a B12 Shot for Maximum Health? MIC + B12 Injection Methionine 20 mg mL Inositol 50 mg mL Choline 50 mg mL + Methylcobalamin (B12) 30 mL Preservative Free Vial Premium Health Care Pharmacy VITAMIN B12 INJECTION