Add this Rising Brand product to your cart NOW for an extra 5% OFF of your whole cart at checkout! The LAB by blanc doux Oligo Hyaluronic Acid Hydro Serum is a refreshing and lightweight serum that provides intense hydration to the skin. It is formulated with low molecular weight hyaluronic acid to deeply penetrate and moisturize the skin without leaving a sticky residue. Perfect for those who want a boost of moisture without any heaviness.