A vitamin B12 deficiency can decrease your quality of life with low energy levels, fatigue, weakness, problems concentrating, shortness of breath, and mood changes. SISU B12 delivers an extra-strength dose of B12 in its most active form, methylcobalamin. These fast-absorbing sublingual tablets have a delicious natural cherry flavor and are an ideal alternative to vitamin B12 injections.Medicinal ingredients Vitamin B12 (methylcobalamin) 5,000 mcg Non-medicinal ingredientsD-mannitol, microcrystalline cellulose, silicon dioxide, croscarmellose sodium, stearic acid (vegetable), magnesium stearate (vegetable), natural cherry flavourContains noDairy, wheat, gluten, soy, artificial colours, or artificial sweetenersAdult dosageTake 1 tablet 1 time per day or as directed by a health care practitioner