Vitamin B12 is essential for healthy red blood cells for energy, but it cannot be absorbed unless the stomach makes intrinsic factor, which may be reduced as we age or in those with poor digestion. This delicious powder is absorbed directly from the mouth, avoiding the need for intrinsic factor. SUITABLE FOR VEGANS & VEGETARIANS. SOYA FREE & NON-GM.Half level measures of Higher Nature Sublingual B12 Powder provides: 200μg Vitamin B12 45mg Vitamin C Suggested intake: Take 1 level measure a day under the tongue. Cautions: Not for citrus allergy sufferers.