Skin Eternal Hyaluronic Serum features hyaluronic acid (HA), one of the skin's most important moisture-retaining components. Unlike other HA cosmetics, Skin Eternal Hyaluronic Serum contains low molecular weight HA, which is more easily absorbed. Skin Eternal will leave your skin feeling soft and replenished. Source Naturals was created in 1982 to support each individual's potential to enjoy optimal health. Source Naturals' comprehensive Bio-Aligned Formulas help bring the power of alignment to your body. When formulating, we evaluate the underlying causes of system imbalances, and then provide targeted nutrition to interdependent body systems. Our line of more than 600 products also includes well-researched, single entity nutrients in their highest quality and most bioavailable forms.