Opening Hours

Mon - Wed 9AM-5PM Thurs & Fri 9AM-8PM Sat By Appt Only


Photodynamic Therapy (PDT) for the treatment of fungal nails.

PDT is a form of light therapy using a light-sensitive compound that is exposed to specific wavelengths of light whereupon said compound becomes toxic to targeted diseased cells and microorganisms (phototoxicity)

PDT involves 3 key components:

  • Photosensitizer (light-sensitive compound
  • Light source (coherent [lasers] and non-coherent [lamps & LED’s])
  • Formation of reactive / toxic oxygen species (Type I and II)


  • Thick fungal nail reduced
  • 1 drop of methelyne blue formulation is allowed to absorb for 30 seconds
  • 2 toes max for max light absorption are irradiated at a high setting for 5 minutes with the light source.
  • Treatment is repeated in 2-3 weeks
  • Over time, methelyne blue stains less vividly blue as indication of decreased presence of fungus.
  • Fungal infected nails absorb more methelyne blue
  • Healthy nails absorb less methelyne blue
  • Total elapsed time to completion/ clear nail = 10-15 weeks (1 treatment every 2-3 weeks)
  • Total treatment cycles estimated for completion / clear nails = 5 cycles
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Urban Selections Plaza 5975 Malden Rd, LaSalle ON N9H 1S7        

(519) 970-9006

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