Advantages High Concentration Hydrating: High concentration of hyaluronic acid-8mg/ml, which is 4 times the hyaluronic acid content of similar skincare products Long-lasting Moisturizing Effect: With the amazing water absorption property, Hyaluronic Acid can significantly sustain moisture and keep skin fair and glowing Class 105 Clean Room to Ensure Safety: Medical grade raw materials; using sterile vial for refilling to perfectly isolate product from air, produced in Class 105 clean room. Customer testimonial I used to wake up with an extremely oily face, however, with this little pink bottle, I now wake up feeling refreshed with smooth and glowing skin!â??â??Irene Size: 30ml; 20ml Main ingredients: water, hyaluronic acid; free from alcohol Skin type: all skin types, including sensitive skin. Application: Apply the essence in circular motions on a thoroughly cleansed face; Use it with other skin care products for better effect.