Recent research suggests vitamin E may prevent skin cancer from developing. For 33 weeks, University of Arizona scientists exposed mice to UV light from sun lamps such as those used in tanning salons. They also applied vitamin E to the skin of half of the mice three times a week both before and during the UV exposure. Results showed that mice given Vitamin therapy had half the risk for developing skin tumors.
Researchers believe vitamin E stimulates the immune response that UV radiation seems to deplete.