No More worries about rain, sweating, and Showers. We have tested this product under shower water and it holds up perfect. It's not made to run your head under the shower. its made in case your hair gets wet in the shower. This spray is water resistant, NOT water proof. If you get your hair wet let your hair air dry. Do not touch your hair. Apply more spray if needed. Our Water Resistant Spray is not to be used as replacement of our fiber hold spray. Our water resistant spray is only to make your hair water resistant.