Does red light therapy affect hair color or fade tattoos?
Robert Strimling (Las Vegas, NV) on Sep 5, 2011
Not red light LED therapy. Red light IPL (Intense pulsed light) may lighten tattoos that are red to orange in color, but it is not likely to and is not the typically used for tattoos. I have not heard of red light IPL lightening hair nor seen it. (Higher wavelength IPL filters can induce hair loss and may lighten hair color.) However, 532 nm red light q-switched laser therapy does fade red or orange-colored tattoos, but does not affect hair color to my knowledge and in my experience. I have been treating tattoos with laser for ~ 20 years.