Are you feeling run down? Low Energy? A quick Vitamin B12 injection can help support energy, metabolism, and overall wellness. It delivers the vitamin directly into the muscle, allowing your body to Vita Jec B12 1000 Injection (Aspen), 100 mL FBN Vitamin B12 1000mcg ml 100ml First Choice Equine Cyanocobalamin Injection, 2mg mL Olympia Pharmaceuticals Vitamin B12 for Injection Cyanocobalamin 1,000 mcg, 25 Box (Rx) Mountainside Medical Neo B12 Injection 1000mcg 1ml Box 3