While our wax warmers are versatile and can be used with various wax types, including soft wax, hard wax, and roll-on cartridges, for the best experience, we recommend using our waxes with these warmers. Our warmers are European warmers designed for European sized products, rather than American sizes. Additionally, since our waxes have low melting points, our heaters don’t excessively heat the wax. So if you do use our heaters with another brand of wax you may need to increase the temperature to thoroughly heat it.