Page 92 - Chapter 3 - Fundamentals of Laser/IPL Hair Removal

Chapter 3 – Fundamentals of Laser/IPL Hair Removal 1st Edition
Figure 32 - The measured wavelengths emitted by this particular device.
We’re not suggesting that all triple wavelength diode lasers do this, but we’re not surprised that at least one does.
How do the hair removal lasers compare – a short review?
There are three main types of laser on the hair removal market these days – the diode, alexandrite and Nd:YAG lasers. They are all ‘long-pulsed’ and all have been shown to be effective, to a point. But, how do they compare?
We carried out a short review of the scientific literature (see ‘References’) to see what clinical researchers across the planet thought.
Interestingly, it appears that the wavelength is not very important! As long as it is in the red/infrared part of the spectrum (between 600 and 1200nm) it doesn’t really matter which wavelength you choose.
Raff et.al. found that larger spot diameters and longer pulsewidths appeared to give better results with the Nd:YAG. Goh used this laser on darker volunteers (Fitz 4 to 6) and found that
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