Vit C Powder 454 gms (reduced acidity) By complexing sodium ascorbate with pure ascorbic acid, we have increased the ph to 4.7. Excellent for patients with low tolerance for stomach acidity caused by pure ascorbic acid. Ingredients: Serving Size: 1/4 teaspoon (1000 mg) Servings Per Container: 454 Vitamin C (as 64% Sodium Ascorbate and 36% Ascorbic Acid 1000 mg Suggested Use: 1/4 teaspoon (1000 mg) daily as a dietary supplement, or as directed by a doctor. Preservative and Excipient-free