VISTRA Pure Collagen Dipeptide VISTRA Pure Collagen Dipeptide (Dietary Supplement) Key Ingredients: Collagen Dipeptide 5 grams (100%) For Allergy Information: Contains fish-derived collagen. Directions for Use: Take 1 sachet and mix it into your preferred food or drink. Food and Drug Administration (FDA) Number: FDA Reg. No. 10-1-12650-5-0026