Benefits and Bioavailability of Vitamin B Complex Injections Vitamin B complex injections, which can include cobalamin and vitamin B12, are quick, effective, and painless injections done in the arm but can also be given in other areas of the body to help treat pernicious anemia
Some people might experience side effects
Energy levels, mood, and cognitive function generally continue improving throughout this period
Wear well-broken-in shoes, not new ones
2 The British Society for Haematology recommends intramuscular vitamin B 12 for severe deficiency and malabsorption syndromes, whereas oral replacement may be considered for patients with asymptomatic, mild disease with no absorption or compliance concerns
Pro tip: Use in the evening, cycle appropriately, and combine with strength training and adequate sleep to amplify natural anabolic signaling