Vitamin B12 Injections Custom Peptide Supply Vitamin B12 Solution 1000mcg 2ML Bulk Orders Manufactry NEW TREATMENT ALERT A vitamin B12 injection helps treat or prevent deficiency by delivering the vitamin directly into the bloodstream. It's often used for people with absorption issues and is usually safe Hydroxocobalamin Injection: Vitamin B12 for Energy & Anemia Vitamin B 12 Injection, 3,000 mcg mL 100 mL