Table 1. Summary of Four Cases of Eyebrow Tattoo Removal Using Picosecond Lasers

Case	Laser type	Parameters (㎚ / ㎜ / J/㎠ / pass)*	Eyebrow hair loss	Tattoo clearance†	Patient satisfaction‡
1	Nd:YAG	1064 / 4 / 1.6 / 1	Preserved	Grade 1 (0-25%)	4
2	Nd:YAG	1064 / 4 / 1.6 / 1	Preserved	Grade 1 (0–25%)	5
3	Nd:YAG	1064 / 4 / 1.6 / 1	Preserved	Grade 2 (26–50%)	5
4	Alexandrite	755 / 3 / 2 / 1	Depigmentation (extensive) & partial loss	Grade 2 (26–50%)	2

Parameters: wavelength / spot size / fluence / passes.
Tattoo clearance was assessed on a 0–4 scale.
Patient satisfaction was assessed on a 5-point Likert scale.