Hyaluronic Acid (HA) is a natural polysaccharide known for its hydrating, moisturizing, and anti-aging properties. HA helps to moisturize the skin. Sodium Hyaluronate (SH) is a sodium salt of HA. It is more stable and water-soluble than HA and is less prone to oxidation. The effects of SH on the skin depend on the molecular weight. Low Molecular Weight (LMW) SH (10 and 200 Kilo Daltons) penetrates deep into the epidermis, yielding superior hydrating and skin-rejuvenating effects. It is ideal for very dry and mature skin.