NAF Garlic Granules refill is made using 100% pure garlic granules. Research now shows that the key compounds within garlic, including allicin, sulphur and vitamins, support its reputation. Garlic is recommended for general health and for day to day maintenance of respiratory health. For premium support of the respiratory system see Respirator and Respirator Boost. NAF Garlic Granules is chosen for its purity and strength.