Mad Hatter Juice is a well-known American e-liquid brand that gained popularity for its creative dessert, fruit, and candy-inspired vape juices. The brand became especially famous with its I Love Donuts and I Love Cookies collections, offering rich bakery-style flavors that earned a loyal following among adult vapers. Over time, Mad Hatter expanded its portfolio to include fruit blends, tobacco flavors, iced e-liquids, and nicotine salt products. Although its original official website is no longer active, Mad Hatter products continue to be available through authorized vape retailers in many international markets.