I've heard that if there is NO pain, or very little pain that it's not working effectively. Please advise.
Should Laser Hair Removal Be Painful?
Doctor Answers 5
Laser Hair Removal and pain
With each laser hair removal treatment the discomfort will decrease because there is less hair present each time. A large spot size (18 mm) will mean a faster laser treatment and therefore a treatment that is more comfortable.
Each laser uses a unique cooling system, whether it is a cooled tip, a cooling gel. or cryogen cooling. Cryogen cooling is the choice for our medical spa as it seems to provide comfortable treatments with very predicatble results.
A relatively new device , PSF, provides a laser hair removal treatment that for some is far more comfortable than laser hair removal without the PSF attachment. A small, box-shaped chamber is applied to the surface of the skin, and suction pulls the skin area taut underneath, compressing it. The highly thermal conductive sapphire window on top of the chamber allows the laser to treat the skin while it is compressed. The skin compression blocks the function of pain nerves, greatly reducing discomfort from exposure to the laser.
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Pain is not the measure of laser hair removal working
Laser Hair Removal discomfort
While laser hair removal discomfort is subjective and depends to a large degree on the patient, we do agree with you that if there is no discomfort then it's probably not working.
The reason for this fact is that for laser hair removal to work, the base or "bulb" of the hair follicle needs to achieve a high enough temperature to permanently damage the small vein that feeds it. Generating the heat necessary for this to happen causes some discomfort.
In the past couple years, there has been one (unnamed) company advertising "pain-free" laser hair removal using an alternate method. Same laser, but different settings and method. We have heard from patients and practitioners that this method is not working. Dr. Law does correctly point out that Lumenis has come out with a relatively new laser hair removal device that uses suction to lessen the pain. Since we do not own this device we cannot validate his comments yet.
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Laser hair removal hurts a little
With the pre-procedure application of strong topical numbing creams, the performance of laser hair removal should be quite tolerable for most people. Occasionally, the patients with the least tolerance have some problems with the treatment and might need to stop doing it. This is rare though.