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The Beginner's Guide to Lasers

Your 101 guide to everything lasers

by Lindsay Tigar  |  COMMENT

PHOTO 1/7
What are lasers?
What are lasers? At its purest, least complicated state, "laser" is defined by light amplification by Stimulated Emission of Radiation. Since you probably didn't go to med school like board-certified dermatologist Dr. Papri Sarkar, here's what that means: a very narrow and intense beam of monochromatic light excites your atoms and molecules. In practice, this means laying in your doc's office as they use a device over scarring or fine lines and wrinkles on your face, using light to alleviate the symptom. If you've thought about laser hair removal, the process is the same, except the laser will target your hair follicles.

Image via Getty

SEE NEXT PAGE: What do lasers do for our skin?
 

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