Vitamin E is the name for a group of compounds with distinctive antioxidant properties.
Researchers have identified 8 naturally occurring chemical forms of vitamin E, however, alpha-tocopherol is the only compound recognised to meet human needs. 
It’s a fat-soluble nutrient that functions as a chain-breaking antioxidant and prevents the spread of free radicals. [1,2]
It is also known to protect skin against harmful UV radiations and, hence, it is an integral part of the skin’s antioxidant defences . However, UV light exposure can reduce the vitamin E content in the skin.
Also, topical applications can provide certain vitamin E forms that are not available from the diet and due to its lipophilic nature, it can penetrate into all the underlying skin layers. 
Some studies indicate that vitamin E supplementation can help against skin wrinkling, skin pigmentation and photoprotection.