Page 150 - Blog Posts v1

B14 - Picosecond vs Nanosecond Laser Tattoo Removal: which is better?
I recently read an excellent article entitled "Effects of picosecond laser on the multi-colored tattoo removal using Hartley guinea pig: A preliminary study" by some researchers in South Korea.
You can obtain a copy here.
In it, they compare the use of two picosecond lasers and a nanosecond Nd:YAG laser. In all, they use three wavelengths - 532, 755 and 1064 nm, with a range of spot diameters and fluences (see table 1).
They tattooed some guinea pigs and then treated them only once with these lasers, and compared the results.
Table 1: The laser parameters used in this study
They show a series of photos of various coloured inks before and after treatment. They then calculated a percentage loss in ink after a three week period and present them in a table.
I have taken this data and drawn up another table showing the order of effectiveness of each wavelength/pulsewidth combination on the coloured inks - see table 2:
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