A tattoo black tattoo on the forearm reached 25% fading after 1 sessions over 18 years.

After 1 sessions at treatment.
The tattoo
A medium black tattoo on the forearm, more than 10 years old when treatment began.
The forearm drains adequately but sits further from the major lymph nodes of the torso.
Older ink benefits from years of natural immune-driven fading: macrophages have been working on the particles throughout the tattoo's life, reducing effective density before treatment begins.
The laser
The Picosecond is a picosecond platform.
For black ink, it operates at 1064 nm with a pulse duration of 300–750 ps.