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Laser Hair Removal Technologies: Alexandrite, YAG, Diode and IPL
A neutral comparison of Alexandrite, Nd:YAG, diode and IPL technologies used for hair reduction and why treatment selection should be individualized.
Hair-reduction devices use different wavelengths and light-delivery systems. No single technology is automatically best for every patient. Skin tone, hair colour, hair thickness, treatment area and recent sun exposure all influence device selection and settings.
Alexandrite laser
Alexandrite lasers commonly operate around 755 nm and are frequently used for hair reduction in lighter skin tones with pigmented hair. Because this wavelength is more strongly absorbed by melanin, settings must be adapted carefully as skin pigmentation increases.
Nd:YAG laser
Nd:YAG lasers commonly operate around 1064 nm. The longer wavelength is less strongly absorbed by epidermal melanin, which is why YAG technology is often considered for darker skin tones. Hair and skin characteristics still need to be assessed before treatment.
Diode laser
Diode hair-removal systems commonly use wavelengths in the 800 nm range, although exact specifications vary by device. They can be effective for selected skin and hair types when used with appropriate settings and cooling.
IPL
Intense pulsed light is not a true laser. Instead of emitting one wavelength, IPL devices use a broader spectrum of light. They can be used for hair reduction, but results and suitability vary by device, skin tone and hair characteristics.
What about ruby laser?
Ruby lasers use a shorter wavelength and are now less commonly used for hair removal than newer technologies. Their strong melanin absorption means they are generally more limited in patients with higher levels of skin pigmentation.
How should technology be selected?
The device name alone does not determine treatment quality. Assessment, appropriate settings, provider experience, cooling and aftercare all matter. A consultation should consider your skin, hair and treatment history before choosing a laser.
Laser hair removal in Montreal
CHIC Laser Centre uses Alexandrite and YAG technology for laser hair removal in downtown Montreal, with settings selected according to individual skin and hair characteristics.
Related reading
Read how laser hair removal works, our guide to laser hair removal for darker skin tones, and our preparation and aftercare tips.
