Which laser is typically used for tattoo removal?

The Q-switched laser is specifically designed for tattoo removal due to its ability to produce high-energy pulses that can effectively break down the pigment particles in the tattoo ink. This type of laser operates in a nanosecond pulse range, allowing it to target the ink without causing significant damage to the surrounding skin. The short pulse duration helps in minimizing thermal injury, making it a safer option for tattoo removal.

What sets the Q-switched laser apart is its versatility in treating various ink colors; different wavelengths can be used for different pigment types, enhancing its effectiveness across a broad spectrum of tattoo inks. Its mechanism of action utilizes the photoacoustic effect, wherein the rapid expansion of the ink particles results in their fragmentation into smaller pieces that can be naturally eliminated by the body's immune system.

While other lasers like CO2 and Erbium are beneficial for skin resurfacing and rejuvenation, they are not ideal for the specific task of tattoo removal due to their longer pulse durations and the potential for deeper tissue injury. The Nd:YAG laser can also be used for tattoo removal, particularly for darker ink colors, but the Q-switched laser remains the preferred choice because of its targeted approach and efficacy across a wider range of ink colors.