Customers have asked why some of our products (including Citrus Shampoo) are rated a 5 on EWG. We were surprised to see this rating too, because most of our ingredients are rated a 3 or less. EWG considers Citrus Aurantium Dulcis (orange peel essential oil) an irritant. That is the only ingredient in our ingredients list that is rated a 5. We are generally supporters of the work that the EWG does around toxins in personal care, but this rating does not seem fair or accurate. We'll let our customers decide for themselves.