Our Hema Free Gel collection is designed for sensitive skin, free from hydroxyethyl methacrylate (HEMA). Note that some of these products might contain di-Hema trimethylhexyl dicarbamate, which is a related compound and can still cause allergic reactions in some individuals, though it is often considered as a safer alternative.  Always check the label to be sure - and reach out to us if you have questions regarding the ingredients.