Image: Â© iStockphoto.com/Kateryna Govorushchenko
About This QuizMaybe you haven't gone so far as getting a chemical peel or paying $200 for a tiny jar of eye cream, but chances are you've tried something to make your skin look younger. But do you really know what works and what doesn't?
What's the most important thing you can do to keep your skin looking younger?
Stay out of the sun.
Use sunscreen every day.
Stay out of the sun and use sunscreen every day.
At this point, it's hard not to know this one ... ninety percent of skin damage is caused by the sun. And keep that SPF above 30!
Why does darker skin usually age better than fair skin?
Darker skin has more natural oil, which helps prevent wrinkles.
The darker color camouflages the wrinkles.
Darker skin has more melanin, which offers protection from the sun.
Melanin is the key here. Skin with more melanin doesn't get as sun-damaged.
How are antioxidants involved in the anti-aging effort?
Antioxidants reverse the aging process in skin cells.
Antioxidants protect the skin from free radicals.
Antioxidants may protect the skin from free radicals, which can be produced when the sun's rays break down in a polluted environment. Free radicals cause cell destruction and could accelerate the aging process -- as well as cause cancer.
Antioxidants block the sun's rays.
What vitamins act as antioxidants?
A, C and E
Vitamins A, C and E have antioxidant properties.
A, B and C
B, C and E
Which antioxidant has been proven to stimulate collagen production?
Topical products containing vitamin C have been shown to help with collagen synthesis.
An episode of "20/20" featured a village in Japan with a remarkable number of healthy, youthful-looking elderly residents. To what naturally occurring substance did the show attribute this phenomenon?
The villagers' diet was unusually heavy on root vegetables, which are a good source of hyaluronic acid.
What are two skin-resurfacing techniques that reduce fine lines and wrinkles?
hydrabrasion and chemical peels
dermabrasion and chemical peels
Dermabrasion and chemical peels are the two most common skin-resurfacing procedures. Dermabrasion scrapes off layers of skin, and chemical peels dissolve them.
dermabrasion and alpha-hydroxy acid treatments
Why do smokers tend to have older-looking skin than nonsmokers?
Smoking destroys collagen.
This one is a bit complicated, but true. A 2007 dermatological study showed that smoking activates a gene that controls an enzyme that destroys collagen.
Smoking slows the skin's oil production.
Cigarette smoke dries out the skin.
What's the only skin care product that has been proven to reverse fine lines?
Studies have shown that topical retinoids (one example is Retin-A) do reduce wrinkles and reverse the effects of sun damage.
What's the active ingredient in the most effective anti-age-spot products?
Bleaching creams and lightening agents contain hydroquinone -- you can get them over the counter or with a prescription.
Â© iStockphoto.com/Kateryna Govorushchenko