Here’s what you’ll learn when you read this story: The dermis—the mid-layer of skin containing hair follicles, blood vessels, and glands—is one of the body’s best defenses against infection and ...

Collagen decreases with age, but your diet can make a difference. Discover 11 key foods for firmer skin and shinier, ...

The science comes down to simple physics. The collagen molecule is biologically massive and is too large to penetrate the ...