Hyaluronic Acid is one of the most familiar ingredients for skincare lovers. It is a very iconic ingredient for isntree too because Hyaluronic Acid Toner is a domestic bestseller product and Hyaluronic Acid Watery Sun Gel is a global bestseller product. Hyaluronic Acid is a well-known ingredient that can pull moisture into your skin, but there are some more things people did not really know about. 1. It's already in your body. Your skin, joints, eyes, and many other parts of the body have Hyaluronic Acid already. It works for making those parts moisturized, smooth, and healed. 2. It's also used for non-surgical cosmetic treatment too. Some people who don't want plastic surgery choose 'Filler' to make their nose higher, forehead rounder, and lips more plumping. Many of specialists use Hyaluronic Acid as one of the safest ingredients for fillers. 3. Hyaluronic Acid has a lot of kinds, names, by molecular weights. You might have seen 8 types of Hyaluronic Acid on the package of our sunscreen. It's because Hyaluronic Acid is an ingredient that has bigger molecular than other ingredients. To make Hyaluronic Acid absorbed into the skin deeply, it is important to use multiple types of Hyaluronic Acid. Low molecular weight HA helps hydration deep in your skin and higher molecular weight HA helps build a moisture barrier to protect your skin. 4. It is better to use in a humid environment. Where do you put your HA products? We recommend you put them in your bathroom to apply HA as quickly as possible before the humidity becomes low after showering. Try to apply HA toner right after a bath. It will pull more moisture from the humid air and last the moisturizing effect longer. Do you have any other ingredients you want to know more? Let us know in the comment!