Hyaluronic acid is one of the most effective hydrators in skincare, capable of holding up to 1,000 times its weight in water. In DIME formulas, hyaluronic acid (often listed in multiple molecular weights) recharges hydration levels and helps restore skin’s suppleness while drawing moisture into skin without oiliness or heaviness. What Is Hyaluronic Acid? Hyaluronic acid is a humectant — it attracts and holds moisture. In DIME products, we often combine multiple molecular weights to deliver both surface-level and deep hydration. High vs. Low Molecular Weight HA High molecular weight: Forms a breathable moisture barrier and improves surface plumpness. Low molecular weight: Penetrates deeper into skin layers for long-term hydration and elasticity. Why Multiple Molecular Weights Matter By combining different sizes of hyaluronic acid in one formula, products like the Hyaluronic Acid Serum help with both immediate surface hydration and deeper water binding for lasting dewy skin. Hyaluronic acid also enhances the performance of other ingredients such as vitamin C, niacinamide, ceramides and squalane by helping them penetrate more effectively. How to Use Hyaluronic Acid To maximize benefits, layering is key. Follow these application tips: Best Practices Apply hyaluronic acid to damp skin immediately after cleansing. Follow with a moisturizer to seal in hydration. Morning Routine Cleanse Apply hyaluronic acid serum such as Hyaluronic Acid Serum Follow with vitamin C (like Hyper Glow Vitamin C Serum) Seal with lightweight moisturizer and SPF Evening Routine Cleanse Apply hyaluronic acid serum Follow with nighttime actives (e.g., bakuchiol) or a richer barrier cream Lock in with moisturizer from our moisturizers collection What Results You Can Expect With consistent use, many users notice smoother texture, plumper-looking skin and a dewy, healthy glow. FAQs About Hyaluronic Acid Do I need hyaluronic acid with ceramides? Yes — hyaluronic acid draws in water while ceramides help lock it in. Can hyaluronic acid dry out skin? Only if applied when skin is completely dry on its own; always use on slightly damp skin and follow with a moisturizer. Is high or low molecular weight better? Both have benefits — combining them delivers the broadest hydration effect. Complete Hydration Guide Want a full hydration routine? Check out our hydration collection for serums, moisturizers and treatment products designed to boost moisture retention and skin elasticity.