A medium black tattoo on the upper arm reached 75% fading after 7 sessions at Skin Renew London over 2 years.

After 7 sessions at Skin Renew London.
The tattoo
A medium black tattoo on the upper arm.
The upper arm is close to the axillary lymph nodes, which supports efficient clearance between sessions.
Timeline
7 sessions over 2 years.
Sessions were spaced 8 weeks apart.
The laser
Skin Renew London treated this case with the Picosecond, a picosecond platform.
For black ink, it operates at 1064 nm with a pulse duration of 300–750 ps.
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.