Water-binding humectant that helps increase surface hydration and gives skin a plumper, smoother appearance.
Hyaluronic acid and its salt sodium hyaluronate are humectants that bind water in the upper layers of the skin. In a cosmetic formula they help improve immediate hydration, softness and the temporary appearance of plumpness. Different molecular sizes can behave differently at the skin surface, but the core role remains hydration support rather than exfoliation or collagen stimulation.
Information approach
Consumer-friendly summaries are informed by established cosmetic ingredient references such as INCIDecoder and Paula’s Choice Ingredient Dictionary, while avoiding turning ingredient-level evidence into medical claims about the finished product.
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