Ultrasonic, infrared cold irons?

These look really gimmicky to me, but I just wonder what's the technology/patents/etc behind these "treatment tools" for hair?
What exactly do they do to hair? Do they heat up? Are they damaging to hair? Why are they claiming to help conditioners work better?

Thanks a lot in advance!

Comments

  • Someone else just asked about these - they seem to work like ultrasonic humidifiers. I can see how they could vibrate water molecules and turn then to vapor but I don't see how they provide any benefit to hair such as helping other ingredients penetrate. 
  • Thank you very much, Randy! :)
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