Now Foods Empty Capsules, Vegetarian, Double "00"Filling your own capsules can save you up to 50% off the retail price of pre packaged supplements. These double '00' veg capsules can hold 700 900 mg of most vitamin or mineral powders. Made from Hypromellose (cellulose) and Water, these capsules are free from common allergens like yeast, wheat, gluten, soy, corn, milk, egg, fish, shellfish or tree nut ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.