L-Citrulline (Kyowa Quality) 3 g per serving. Other Ingredients: None. Allergens Free of GMOs, gluten, soy, added or artificial flavors, colors, and preservatives. Directions Suggested Adult Use: Mix 1 level scoop (~3 g) with 8 oz of water or a beverage of your choice before a workout, or as recommended by a nutritionally informed physician. Storage Store in a cool, dry place. Country of origin United States