Most vitamin C on the market is made of isolated and pharmaceutically-made ascorbic acid, often derived from allergenic and genetically modified corn. In contrast, Pure Radiance C contains the whole vitamin C natural complex, including valuable antioxidants and  bioflavonoids, and naturally-occurring ascorbic acid. This formula has tested superiorly for me for the last twenty years, and even surpasses other natural vitamin C remedies.
 
Capsules: Take 1 capsule a day to maintain health, and 2 capsules a day to optimize health.
 
Powder: Take ½ teaspoon a day to maintain health, and 1 teaspoon a day to optimize health.