What it is
This is a synthetic copolymer formed from acrylamide and sodium acryloyldimethyltaurate monomers, supplied as a pre-neutralized polymer that thickens and stabilizes water-based and emulsion systems. In sunscreens it helps build viscosity, keep oil and water phases evenly dispersed, and contribute to a smooth, even texture. It performs across a wide pH range and is easy to incorporate.
Safety & warnings
This polymer is generally well tolerated and is not significantly absorbed by the skin owing to its large molecular size, so it is not associated with notable irritation, allergen, or comedogenicity concerns.
Origin & sourcing
Synthetic; manufactured by polymerization of acrylamide and sodium acryloyldimethyltaurate monomers.
Questions everyone asks
What does this copolymer do in a sunscreen?
It thickens the formula and helps keep the emulsion stable so the product stays smooth and uniform.
Does it provide any UV protection?
No; it is a texture and stability agent and does not act as a UV filter.