Green, blue, and purple tattoo pigments are often the colors most resistant to laser removal. Recently, the first ever production picosecond‐domain laser with a 785 nm wavelength was developed by Syneron Candela to improve the rate of clearance of green, blue, and purple tattoo inks. This is available for Picoway, the world’s most effective system for tattoo removal.
Please see an article on the PicoWay 785nm handpiece written by Dr. Bernstein & co:
https://onlinelibrary.wiley.com/doi/full/10.1002/lsm.22942