Cool Test Zap

Literally, it's so cool!Before any laser hair-removal treatment, there is always a quick test-zap performed on specially treated paper to make sure that the cooling-spray is being evenly dispersed. The coolant spray turns the temperature-sensitive paper bright fuchsia, and as long as the initial mark is a complete circle -- we know that your treatment areas will be fully covered. (As soon as the temperature starts to return to normal, the pink splotch fades away into nothingness.)