Don’t be afraid of the “sodium” part, it is a good thing. It is the sodium salt of hyaluronic acid, it has a smaller molecule size than hyaluronic acid and so can more easily penetrate the skin’s surface. Hyaluronic acid is naturally found in the skin and we age it starts to disappear and skin appears thinner and results in fine lines and wrinkles. Hyaluronate acid needs to be injected under the skin due to molecule size but sodium hyaluronate can be applied to the skin as a moisturizer.
And another great thing is that is actually attracts and holds 1800 x its own weight in water. That combination of deeper penetration and retaining more water makes it a powerful ingredient in skincare products. Sodium hyaluronate helps to keep the skin hydrated and not greasy like other hydrating ingredients. It swells the skin and can help plump up fine lines without any heaviness left on the skin.