Once a month
get new photos
and expert tips.

Science and Space
Main Health and Human Body Earth Space Prehistoric World A-Z

Photo Gallery: Skin

PREVIOUS11 of 12NEXT


Thirtysomething Kelly Curtis braces for an injection of muscle-paralyzing Botox, a popular treatment for aging skin. Americans spend over 300 million dollars annually injecting themselves with botulinum toxin, a poisonous substance that, when used in minute doses, temporarily smoothes wrinkles. It is also used to treat extreme muscle spasms. Photograph by Sarah Leen

Science and Space