Tecnu poison oak-n-ivy cleanser removes the oily toxic from poison oak, ivy and sumac from your skin. It prevent poison oak and ivy reactions within the first few hours of exposure with Tecnu proven effective in preventing reaction if applied to exposed area within 8 hours. It is easy to apply, has a pleasant odor and is a free-flowing cream. TECNU® is not a remedy for itching once the reaction has started. Box contains 4 packs of 59.1 ml equaling to 2 FL Oz. Box of 2 FL OZ.