Apply the gel directly to the skin of the back or lower back, spreading it gently over the area you want to warm. The texture is designed to spread easily and then form a flexible film, so you do not need to rub it in aggressively — a light, even layer is enough. You control the amount, so start with a small quantity the first time and add more only if the sensation feels comfortable.
Wash your hands thoroughly after application, because the active ingredients can transfer to your eyes or mucous membranes if you touch them. Avoid applying the gel to damaged, irritated, or broken skin — it is intended for intact skin only. If you have sensitive skin, do a small test on a limited area first and wait to see how your skin reacts before covering a larger zone.
The gel does not need to be rubbed in until it disappears. It forms a film that keeps the active layer in contact with the skin, which is what allows the warming effect to persist. If you apply too much, the film may feel thick or heavy; a thin layer is sufficient. After use, the film can be washed off with water and mild soap.