高考英语《流行话题 语境识词4500》Unit 91　The ABCs of Vitamin Enhanced Skin Care素材.docVIP

高考英语《流行话题 语境识词4500》Unit 91　The ABCs of Vitamin Enhanced Skin Care素材 Unit 91　　The ABCs of Vitamin Enhanced Skin Care　　Most of us know that vitamins can work wonders on our skin from the inside. However, many people have yet to realize the benefits of using vitamins on the outside. Below is a simple guide to aid you through the daunting maze of vitamin-enriched products, while making sure your skin get its recommended daily allowance of beauty.　　VITAMIN A:? helps with fine lines and wrinkles. As some have learned the hard way, attempting to hide fine lines and wrinkles behind layers of make up is a losing battle. Better to improve the condition of your skin with products containing retinoids -- a class of Vitamin-A derivatives. However, due to the lower levels of retinoids in some consumer products, it may take a bit longer to see the desired result.　　VITAMIN B: A healthy glow, moisture retention. Vitamins B-3 and B-5 have become popular additions to skin-care products because of their ability to assist in retaining moisture. B-3 is a relatively new ingredient on the marketplace but has demonstrated great promise, offering a milder alternative to acidic elements, which some feel is too harsh for their complexions. B-5 is a more common skin-care additive, and is widely recognized for its (along with Vitamin E) moisturizing ability. Its also good for those with sensitive skin, as some creams made with Vitamin-E have been known to cause irritation.　　VITAMIN C: Repairs sun damage. Vitamin C has been one of skin-cares hot sellers for the past several years due to its proven effectiveness as an antioxidant. Antioxidants are a critical natural defense against free radicals, unstable molecules that age the skin as a result of pollution, smoking and sun exposure. Vitamin C can protect the skin from UV damage caused by prolonged sun exposure by reducing the amount of free radical formation. However ,while it can help safeguard against skin damage and reduce discoloration,