Sodium hyaluronate is the salt form of hyaluronic acid, known for its strong water-binding properties. When applied topically, it acts as a humectant, drawing moisture from the environment and the deeper layers of the skin to the surface. This temporary reservoir of water in the upper skin layers helps to plump the area, which can make fine lines related to dehydration look less visible and improve the immediate feeling of elasticity and suppleness. Its action is often described as hydrating the skin from within, but it is important to remember that the primary effect is on the stratum corneum (the outermost layer). The effect is most pronounced immediately after use and for a few hours thereafter, especially when followed by a moisturizer to seal in the moisture. To maintain this effect, consistent hydration from your overall skincare routine is key.
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