A custom blend formula with optimal concentration of low and high weighted hyaluronic acid molecules that bind moisture and replenish skin, providing long-term hydration and more supple-looking skin. Skin Type: Normal, Dry, Combination, and Oily Skincare Concerns: Dryness Formulation: Lightweight Serum Highlighted Ingredients: - Custom-blended Hyaluronic Acid: A Dr. Sturm proprietary formulation of long and short chain hyaluronic molecules for intense, long-term hydration with a plumping effect;