Apples provide a small amount of skinfriendly vitamin A, a family of chemicals called retinoids. Vitamin A plays an important role in skin development . it helps immature skin develop into mature and functional skin tissue. Vitamin A might also reduce the risk of skin cancer, according to the Linus Pauling Institute, although more research is needed to know its exact role in cancer prevention. A large apple provides 120 international units of vitamin A.