Name: Hyaluronic acid Content: 99% Grade: Cosmetic grade, food grade, eye-drop grade, injection grade. Product: Hyaluronic acid Appearance: White powder CAS: 9004-61-9 ... : (C14H21NO11)n Content: 99% Source: Fermented Grade: Cosmetic grade, food grade, eye-drop grade, injection grade. pH: 5.5~7.5 Appearance: White ... temperature, drying and sealed conditions. Hyaluronic Acid (food grade, cosmetic grade)