Product Features Si-O2 Hyaluronic Acid Hydrating Essence is rich in hyaluronic acid which is crucial in maintaining healthy skin. Hyaluronic acid serves as a free radical scavenger and antioxidant. This essence can provide optimum hydration to skin and improve skin's elasticity. Key Ingredients Hyaluronic Acid, Glyceryl Polycrylate, Vitamin B5, Propylene Glycol, Polyquaternium-51 Benefits Infuse massive water to underlying layer of skin. Improve the skin elasticity. Keep skin radiant and moisturized all the time. Directions After cleansing and applying toner, put 2 to 3 drops of essence into palm. Spread the essence onto face, massage gently until it is fully absorbed. With regular use, your skin may stay healthy, balanced and radiant.