As we grow older our skin is exposed to various environmental factors (air pollution, smoking, sunlight), special molecules are produced, known as free radicals. These molecules are toxic and cause cell damage, leading to their death and aging. So antioxidants help defend your cells from damage caused by potentially harmful molecules known as free radicals.
Important antioxidant vitamins are:
Vitamin A
Vitamin A is essential for the proper functioning of keratinocytes. Good sources of vitamin A include yellow fruits and vegetables such as apricots, melons, carrots, sweet potatoes, lettuce, eggs, pate (mainly turkey). Lack of vitamin A can cause dry and flaky skin. It is a substance used either orally or in various topical preparations to treat wrinkles and dull skin. It is also used to treat acne and some skin diseases such as psoriasis. Vitamin A recommended intake is at 5.000 IU/day. High intakes of of vitamin A can cause nausea, vomiting, jaundice or hair loss. When taken in excess vitamin A supplements can cause potential teratogenic effects to the fetus.
Vitamin C
Vitamin C (Ascorbic acid) is an important antioxidant required for the biosynthesis of collagen, an essential ingredient that helps keep skin plump and firm. Foods rich in vitamin C are citrus fruits (oranges, lemons), strawberries, tomatoes, sweet peppers, broccoli, cauliflower, lettuce. For topical use, creams containing L-ascorbic acid, which penetrates the skin and enhances collagen production, are helpful.
Vitamin E
Vitamin E is an essential vitamin for maintaining healthy skin. It protects the skin from further photo damage caused by ultra-violet rays. Foods that are high in vitamin E are: oil, broccoli, almonds, peanut.
Vitamin B7 (Biotin)
There are many different types of vitamin B. The one that is essential for the skin is Biotin. Its lack may cause dermatitis. It can be found in various foods such as bananas, eggs, rice. Creams containing Biotin, can give skin an almost instant healthy glow and help retain its moisture.