Laser Tattoo Removal (PiQo4)

PiQo4 multi-wavelength picosecond and nanosecond laser tattoo removal covering 9 ink colours across 4 wavelengths (532 nm, 650 nm, 670 nm, 1064 nm). PiQo4 delivers ultra-short picosecond pulses that shatter tattoo pigment into micro-particles more efficiently than older Q-switch systems. Typically 8–12 sessions required. National average approximately $644 per session. Sessions are brief with several weeks between treatments for immune clearance of shattered pigment.

Westlake Dermatology & Cosmetic Surgery uses the PiQo4 laser system for tattoo removal — a platform that combines both picosecond and nanosecond pulse modes with four wavelengths (532 nm, 650 nm, 670 nm, and 1064 nm) to address the full spectrum of tattoo ink colours. Conventional Q-switched lasers operate in the nanosecond pulse range; the PiQo4's picosecond mode delivers energy in pulses up to 1,000 times shorter, generating primarily photoacoustic (pressure wave) energy rather than photothermal energy. The intense pressure waves shatter tattoo ink particles into vastly smaller fragments that the lymphatic system can clear more efficiently than the larger particles produced by nanosecond lasers. The result is faster clearance per session, reduced treatment burden, and lower risk of adverse thermal effects on the surrounding dermis. The four available wavelengths address specific ink colour families: the 1064 nm Nd:YAG targets dark pigments (black, dark blue, dark green); the 532 nm KTP targets lighter and brighter pigments (red, orange, yellow, purple); the 670 nm wavelength targets blue and green inks that are resistant to 1064 nm; and the 650 nm wavelength addresses green and teal inks. This four-wavelength coverage expands the range of treatable ink colours beyond the two-wavelength limitation of most standard tattoo removal platforms, making the PiQo4 particularly effective for multi-coloured tattoos. Typically 8–12 sessions are required for significant removal depending on ink density, tattoo age, depth, and immune response. Sessions are brief (10–30 minutes) and spaced 6–8 weeks apart to allow the immune system to clear shattered pigment between treatments. The clinic's blog cites a national average of approximately $644 per session for laser tattoo removal.