The cooling gel is designed to help cool and hydrating the skin, which will keep your skin in a comfortable state when you use the hair removal device or other beauty devices. Use the RF gel with any RF device, it allows your device to easily glide across the skin to achieve optimum results. It no irritation to skin, and be applied to any skin type and any part of the skin. The electrode gel acts as a conductive medium for RF waves, allowing them to pass through without any interference. It is very important because it greatly improves the results of the treatments. It is easy to use, just apply RF gel to the skin surface of the treatment area when using the RF device. The gel is hypoallergenic, clear and water-soluble, which easy to clean off. The cooling hydration facial gel has a moisture-rich formula, high effective nutrient penetrate into skin and tightening skin wrinkle remove, so it can use alone as a hydrating treatment.