A half sleeve black tattoo on the upper arm, shoulder reached 75% fading after 16 sessions at End of Ink over 4 years and 6 months.

After 16 sessions at End of Ink.
The tattoo
A half sleeve black tattoo on the upper arm, shoulder, 1–5 yrs old when treatment began.
The upper arm is close to the axillary lymph nodes, which supports efficient clearance between sessions.
Timeline
16 sessions over 4 years, 6 months.
Sessions were spaced 3-4 months apart.
At 16 sessions and still in progress, the timeline reflects the density and complexity of this specific case.
The laser
End of Ink treated this case with the Q-Plus C, a nanosecond Q-switch platform.
For black ink, it operates at 1064 nm with a pulse duration of 6 ns.
Bottom line
The last 5 to 10 percent of clearance is consistently the hardest phase: residual ink sits deepest, immune response slows, and the composition of what remains is unknown.