Natural Factors' Hi Potency B Complex features a full range of B vitamins including choline and inositol. B vitamins work together to provide the body with energy. They convert protein, carbohydrates and fats into energy and synthesize brain chemicals. They have so much in common as a group that they are often considered a single entity. B vitamins are usually found in the same foods and they work as a team in our body to support hair, skin and vision health. Product of Canada.