Charmost hyaluronic acid serum contains 100% of cosmetic grade hyaluronic acid to . Booster up your skin for optimal state condition. . Hyaluronic Acid Serum lasts for up to 24 hours from just once usage. . Helps maximizing effects of further skincare products. . Perfect solution for hydration a moisturizing. Competitive Advantage Safe and Natural Non-animal, bio-fermentation ,sterile HA powder , no risk of bacterial infection High-purity ,high viscoelastic Professional R & D Dep. for innovation product Affordable price Produced in our own factory ensures lower price and high quality. Small quantity is also acceptable Service OEM/ODM Recommend If you have sensitive and dry skin. If you want to effectively hydrate your skin. If you are looking for pure hyaluronic acid serum for hydration. If you don't like heavy skincare product that burdens the skin layer. If you need booster for better absorbtion of further skincare products. Function Deeply moisturizing and smooth skin,nourishing and refresh Anti-oxidants to younger skin appearance Lightening and fade spots Fight against free radicals to anti-aging Firming akin and improve elascity How to use After applying the toner, generally apply 1~2 droplets to the facial area. Gently dab the serum for skin to absorb the product.