How effective is the Erbium:Yttrium aluminum garnet laser (Er:YAG) for the treatment of keloids and hypertrophic scars?

Updated: Jun 12, 2018
  • Author: Brian Berman, MD, PhD; Chief Editor: Dirk M Elston, MD  more...
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Answer

Er:YAG laser showed a decrease of 51.3% in redness, 50% in elevation, and 48.9% in hardness of keloids in one study after treating 21 keloids. The recurrence rate was not reported. [88]

Similar to the carbon dioxide laser, the argon 488-nm laser can induce collagen shrinkage via generation of excessive localized heat. The argon laser has demonstrated recurrence rates of 45-93%.


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