The It Works Ultimate Body Applicator is safe to use on any part of the body. In fact, there is even an applicator designed especially for your face. The facial applicator comes with spaces for your eyes, nose and mouth pre-cut. The standard Ultimate Body Applicator is approximately 13″ x 21″ in size. When using the applicator on places like your legs, arms or even the neck – it is okay to cut the applicator in half or smaller pieces if necessary.