Video: Do anti-wrinkle creams work?

Want a younger, more perfect-looking you? Skin can stay firm and stretchy thanks to protein fibers called collagen and elastin in the tissue beneath the surface.

Bioengineers explore why skin gets 'leathery'

Received wisdom says that staying out in the sun too long can make your skin tougher over time. Think about the "leathery" complexions of farmers, road crews and others who work long hours outdoors, or someone who spends ...

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