What it is
This is a high-molecular-weight acrylic copolymer that swells in water to build viscosity and form a stable gel network. It thickens lotions and gels, suspends pigments and UV filters evenly, and gives a light, non-sticky texture, often working without traditional emulsifiers.
Safety & warnings
Large polymers like this stay on the skin surface and are generally non-irritating and non-sensitizing.
Origin & sourcing
Synthetic acrylic polymer.
Questions everyone asks
What is this polymer for?
It thickens and stabilizes the formula so the sunscreen stays smooth, even, and does not separate.
Does it absorb into skin?
No, it is a large molecule that remains on the surface and helps control texture.