Ingredient dictionary

Sodium Hyaluronate Crosspolymer

A crosslinked form of sodium hyaluronate, the salt of hyaluronic acid. Its main job is to attract and hold water in a formula. It is on the label of 17 products in our library. Checked against our library November 6, 2026.

What Sodium Hyaluronate Crosspolymer does

Draws and holds water in the skin's top layer
Adds a soft, cushiony feel
Helps a formula spread smoothly

Hyaluronic acid is a sugar-based molecule that occurs naturally in skin. Most cosmetic versions are made by fermentation, then processed into a salt form called sodium hyaluronate. Chemists can link these chains together to create a crosspolymer, a larger network that holds onto water for longer.

Formulators use it because it helps a product feel hydrating without feeling heavy. The crosslinked form tends to give a soft, cushiony texture and smooth spreading. It is usually found in water-based serums and gels, where it can add body and help the formula feel light on the skin.

Good for

Suits serums and moisturizers for people who want a light, hydrating feel, including dry skin.

Frequently asked questions

Is Sodium Hyaluronate Crosspolymer the same as hyaluronic acid?

They are closely related. Hyaluronic acid is the parent molecule, and sodium hyaluronate is its salt form. The crosspolymer version is a linked, larger network of those chains. All three work in a similar way: they attract and hold water in a formula.

Can it help dry skin feel better?

It can help dry skin feel softer and more comfortable because it holds water near the surface. It is a humectant, so it works best when a moisturizer or oil seals that water in.