What is Hema and why has it been removed?

Hema is hydroxyethyl methacrylate which is used as a main ingredient to polymerize the gel polish. Hema is considered the No. 1 allergen in gel polish products. Therefore, removing Hema grants home users and end users the ability to do manicure by themselves. It also grants nail technicians the ability to offer their services to clients who have shown signs of an allergy.

According to the EC requirement EC 1229/2003, HEMA formula can still be included in gel polish but only for professional nail technicians who have the experience to correctly deal with possible allergic reactions to HEMA.