Sodium Hyaluronate Crosspolymer-2

Sodium Hyaluronate Crosspolymer-2 is a chemically modified form of sodium hyaluronate, a naturally occurring compound found in the skin and connective tissues. The crosspolymer structure means the hyaluronate molecules are linked together, creating a larger, more stable molecule compared to standard hyaluronate.Like its parent ingredient, it functions as a humectant—a substance that draws water from the environment and deeper skin layers into the outer layers. The crosslinked structure is designed to provide more sustained hydration and potentially improved stability in formulations.

Humectants work by attracting water molecules through a process called hygroscopy. Sodium Hyaluronate Crosspolymer-2 binds water and pulls it into the outer layer of skin (stratum corneum). The crosspolymer structure may provide a more gradual, sustained release of hydration compared to smaller hyaluronate molecules, potentially keeping the skin hydrated for longer.The ingredient does not add water itself; rather, it draws moisture from the environment and from deeper skin layers. This makes it most effective when applied to damp skin or in humid conditions.

Apply Sodium Hyaluronate Crosspolymer-2 products to clean, damp skin for optimal efficacy—the ingredient works best when there is moisture present to draw into the skin. It can be layered with other hydrating or treatment products and is suitable for use morning and evening. There is no risk of over-application, so use as needed to achieve your desired level of hydration.

This ingredient is generally well-tolerated and suitable for sensitive skin. No significant irritation or toxicity concerns are documented at typical cosmetic concentrations.