Intense Pulse Light (IPL), uses a broad range of light on the electromagnetic spectrum, typically with wavelength range for 515 nm to 1200 nm.
Results of IPL hair removal treatment vary from one machine to another.
Typically, IPL hair removal machines with wavelength above 695 nm and above are very effective for achieving pemanent hair removal results.
In addition, IPL hair removal machines that is cleared by U.S FDA or CE mark for pemanent hair reduction are safer and effective due to strict regulatory requirments imposed by these health authories before the machines are being marketed to practitioners.
Examples of IPL hair removal machines cleared by U.S FDA and CE mark are Cynosure PL, Cutera Prowave, Sharplight Formax Plus, Lumenis One, Alma Harmony, Palomar Starlux, Sciton BBL, Syneron eLight DS etc