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How Laser Tattoo Removal Works - Smarter Every Day 123

Key Facts In This Video

  1. The bright colors in tattoo inks are created from compounds of heavy metals. 00:32

  2. Tattoos fade with age because some of the ink is attacked by white blood cells. 04:15

  3. During tattoo removal, a laser quickly heats up one side of an ink particle, causing internal stress that rips the particle apart. 06:02