Ammonium Acryloyldimethyltaurate Crosspolymer

Ammonium acryloyldimethyltaurate crosspolymer is a synthetic polymer — a chain-like molecule created through chemical synthesis rather than extracted from natural sources. It belongs to a class of ingredients designed to improve the physical stability and sensory properties of skincare products.

In formulations, this ingredient serves two main functions: it prevents emulsions (mixtures of oil and water) from separating, and it adjusts viscosity — essentially, how thick or thin a product feels. This means it helps creams stay creamy, serums stay pourable, and gels maintain their texture over time.

This polymer works by forming a three-dimensional network within a formula. Its charged molecules interact with both oil and water phases, acting as a 'bridge' that keeps them emulsified and prevents them from separating. This crosslinked structure also absorbs water, which adjusts the overall thickness and spreadability of the product.

Because it's a physical stabiliser rather than a chemical one, it doesn't transform or react with other ingredients — it simply provides structure to the finished formula.

This ingredient is used by formulators, not by consumers — you won't apply it directly to your skin. It exists in finished products to make them work better. If you're using a cream, lotion, or gel, you're benefiting from ingredients like this without needing to do anything different. There are no special application instructions for products containing it.