Gelous is proud to offer superior-quality, 10-free gel nail polish, meticulously manufactured to meet European Commission Regulations. While most salon and at-home gel polishes contain Hydroxyethyl Methacrylate (HEMA), which helps to create long-lasting, high-shine gel manicures, it is possible for a small number of individuals to develop an allergic reaction, resulting in symptoms such as redness, swelling, peeling or itching. However, when using gel polish as directed, the likelihood of such a reaction is very low.Always follow instructions carefully, making sure to apply thin, even coats of gel polish and curing for the full 60 seconds, taking care to keep the thumbs flat to ensure a proper cure. To avoid under-curing due to incompatibility, it is essential to use all Gelous products together. Additionally, remove the blue film from the base plate of the lamp to reflect the lights more effectively, leave a gap between the gel nail polish and cuticle, and make sure to remove any polish from the skin before curing. In the rare event that you believe you have had an allergic reaction, discontinue the use of gel nail products and seek advice from your doctor.