H FACTORS H Factors is designed to help maintain homocysteine within normal levels in the body, particularly as we grow older. It provides TMG (Tri-Methyl Glycine) plus three B vitamins and Zinc, each known to assist this process. Suggested intake: Take 2-4 capsules a day, with meals.Two capsules typically provide: 750mg TMG (tri-methyl glycine), 15mg Vitamin B2, 50mg Vitamin B6, 400µg Folic acid, 500µg Vitamin B12, 10mg Zinc. No added: Sugar, salt, wheat, gluten, yeast, lactose, dairy products, artificial preservatives, colours or flavourings. Vegetarian and vegan.