- Four different Nd:YAG lasers: 1064 nm, 532 nm, 650 nm, and 585 nm
- 1064 nm lasers are best when used to target black, dark blue, and green inks
- 532 nm lasers are used to treat red, orange, brown, yellow, and some green inks
- 650 nm and 585 nm lasers are both achieved through filters and are not ideal for laser tattoo removal
When advanced lasers were first introduced as tools that could be used for laser tattoo removal, the original Q-switch lasers were only available in one wavelength: 1064 nm. There are now multiple kinds of Q-switch lasers, and each one provides a different wavelength that targets certain colors.
Q-switch Nd:YAG lasers are available in several wavelengths. Most popular is the 1064 nm, which is best used to treat black ink, dark blues, and greens. The 532 nm is most appropriate for inks in the warm family, such as red, orange, brown, yellow and some greens. Notably, both of these wavelengths can be used to treat a wide range of ink colors aside from what they work best on.
The 532 nm Nd:YAG laser is often included as a hand piece with alexandrite lasers because alexandrite lasers cannot target colors in the red family. The additional piece allows the alexandrite laser to treat a wider range of colors.
There are two other Nd:YAG lasers that come as hand-held additions. These provide wavelengths of either 585 nm or 650 nm. The 585 nm Nd:YAG laser is used to target blues and the 650 nm Nd:YAG laser is ideal for targeting greens.