What it is
Tocopherol, or Vitamin E, is naturally produced in sebaceous glands. The type used in cosmetics is usually derived from vegetable oil.
What it does
Tocopherol is a powerful antioxidant that protects the skin from exposure to UV rays as well as from environmental exposures to ozone.
In addition, Tocopherol also hydrates skin.
Finally, it is used as a preservative. It works by preventing light from deteriorating the formula, thus keeping it good and effective for longer.
Tocopherol can cause allergies and irritations in some people.