What is vitamin E serum? Yes, it is actually a vitamin. But if you want to get technical, the term vitamin E actually refers to a group of compounds. According to cosmetic chemist Ni'Kita Wilson, there are about "eight different types" or forms of vitamin E. "Vitamin E is the name given to [a] family of oil-soluble antioxidants," explains cosmetic chemist Ni'Kita Wilson. Of the eight different types of vitamin E, "tocopheryl acetate and tocopherol are most commonly found in skin-care products." That means that although there are technically eight chemical forms in which vitamin E naturally occurs, it's almost always tocopherol when you see the label "vitamin E" on your skin-care or supplement packaging.