B vitamins are essential for energy production, brain and nervous system function and healthy skin and hair. Vegetarians/vegans and patients with digestive disorders, taking certain medications like Metformin, or have low stomach acid are often deficient in B vitamins. A vitamin injection is the administration of a pure and prescription only version of B-vitamins and/or antioxidants into a muscle to help replete your nutrient deficiency, improve fatigue and stress management, enhance mood and support immune function. Vitamin injections are offered to established patients only.