4D hyaluronic acid deep moisturizing liquid

4X hyaluronic acid refers to four different sizes of hyaluronic acid molecules. Compared with a single hyaluronic acid, layered water, water directly to the bottom of the muscle. They are: sodium hyaluronate crosslinked polymer (300kDa), sodium hyaluronate (180-300kDa), acetylated sodium hyaluronate (10-50kDa), hydrolyzed sodium hyaluronate (less than 10kDa).