Glyceryl Acrylate/Acrylic Acid Copolymer

The hydrogel matrix acts like a thin wet sponge, delivering moisturizing ingredients such as glycerin to the skin. The pendant glycerol groups draw water to the skin, providing hydration. It additionally contributes to product texture by acting as a thickener.

The source notes that acrylic acid monomer is considered hazardous due to skin absorption, but once polymerized into the large copolymer molecule this concern is described as no longer significant. No additional contraindications are mentioned in the source.