Best Vitamin B12 Injection Sites: Where to Inject B12 PA Relief Where to Inject Vitamin B12 B12 vitamin Store How to inject B12 in your arm The Wellnest Family Clinic Feeling low on energy or run down? Nutrient deficiencies like Vitamin B12 and Vitamin D can sometimes play a role. Vitamin injections Instagram A vitamin B12 injection is a shot that delivers B12 directly into your muscle, helping your body absorb it quickly (especially if your body struggles to absorb it from food or tablets) Come along with me, as I give myself my weekly vitamin B12 shot. #vita Vitamin B12 TikTok