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Clinical Papers

A novel dual-wavelength, Nd:YAG, picosecond-domain laser safely and effectively removes multicolor tattoos


PubMed Reference: Bernstein EF, Schomacker KT, Basilavecchio LD, et al. Lasers Surg Med. 2015 July.

Study Details: 

  • 21 subjects (Fitzpatrick Skin Type I-IV) with 31 tattoos (black or multi-colored green, blue, purple, red, and yellow)
  • Up to 7 treatments with PicoWay Zoom 532nm/1064nm handpieces, at 6 to 10-week intervals
  • 3-5 mm spot size, 1.4 - 5.3 J/cm2 fluence with 1064nm wavelength (Black, blue, green, and purple inks), 0.4 to 2.1 J/cm2 fluence with 532nm wavelength (red and yellow inks)
  • Blinded assessment of photos, using 10-point scale (0=no improvement to 10=100% or total clearance)

Study Results: 

  • Mean score for blinded evaluation: 7.94±0.09 - corresponding to 79% removal after an average of 6.5 treatments
  • Average 92% clearance of black ink after an average of 6.5 treatments
  • Average 80% clearance of red ink after an average of 4.5 treatments
  • No scarring, or moderate or severe pigmentary alterations were seen in the 3-month follow-up cross-polarized images