Stimulating and cooling. ON Insane is the most intense stimulating personal moisturizer on the market. Women experience the feeling of pulsating heat, along with the sexiest sensation of intense, circular movement inside the body. Women can feel it internally as well as externally when it comes in contact with the clitoris. Enjoy this wild roller coaster of sensation alone or with a partner, to take your love making to a climactic burst.nnON INSANE comes in a hybrid base so it is long-lasting, hydrating, and never feels sticky or tacky. It is also menthol free, and contains no glycerin or parabens.