Guidelines for Tattoo Removal Using Ruby 694 Laser

Mechanism of Action and Effectiveness

The Q-switched ruby laser causes extremely rapid heating, leading to fragmentation of tattoo pigment particles without damaging surrounding tissue, particularly effective for removing blue-black and green pigments, with treatment intervals of at least 4 weeks between sessions to minimize risk of permanent pigmentary changes 1, 3

Treatment intervals should be at least 4 weeks apart to allow for phagocytosis and clearance of fragmented pigment particles, and immediately after laser pulse, the epidermis appears white due to water vaporization in the skin 1, 3
Free pigment becomes intracellular again within 4 weeks, necessitating the waiting period between treatments, and longer intervals between treatments may reduce the risk of permanent pigmentary changes 3

Proper training in Q-switched laser use is essential, as significant burns can occur within tattoos after improper treatment, leading to scarring and poor outcomes, and providers should be aware of potential toxicologic risks associated with cleavage products formed during laser-assisted tattoo removal 1, 3
Tattoo particles can be found in regional lymph nodes following treatment, and patients should be informed that tattoo removal is expensive, with costs ranging from $49-$300 per square inch per treatment 3

Complete removal may require multiple sessions, and one case report documented significant improvement after 47 treatments for large, multicolored tattoos 3

The Kirby-Desai score can help estimate the number of sessions needed based on skin type, tattoo colors, and complexity, and patients should be counseled that tattoo removal is expensive, time-consuming, and may not result in complete clearance 1, 3
Patients with history of keloid formation should be advised of potential scarring risks, and patients should be informed that removal is difficult, expensive, and only partially effective in many cases 4