Section : Conference Notes

Lasers to treat Pigmentation

Lasers to treat pigmentation: All operate according to the Q-switched mode (pulse of very short duration):

  • alexandrite laser
  • ruby laser
  • NdYAG laser

Before using lasers, other treatments are to be tried:

  • topical (creams, depigmentation cream). To learn more about a safe and effective depigmenting cream, click here.
  • surface ablation (chemical peels)
  • lasers

Does it work?

  • lentigines: Laser pigment work better than IPL (intense pulsed light or flash lamp)
  • freckles (ephelides): respond to pigmented laser and IPL (3 sessions), Chemical Peels do not work
  • PIH (post inflammatory hyperpigmentation): Neither IPL nor laser pigment work
  • Nevus of Hori:  IPL does not work but the pigment laser may have interesting results
  • SK (seborrheic keratoses): responds to laser but other cheaper and effective methods are available
  • Melasma (Chloasma, Pregnancy Mask): Works partially with IPL but does not respond at all to pigment laser
  • Nevus of Ota: responds to pigment laser but not IPL.

The risks of laser treatment:

  • especially for darker skin types (IV-VI)
  • Hypopigmentation Post-inflammaoire
  • Post-inflammatory hyperpigmentation-

It is especially important to know that we treat. The presenter showed the example of a lichen planus pigmentosus not responding to treatment due to misdiagnosis (of chloasma (melasma) (pregnancy mask))


Dr Christophe HSU – dermatologist. Geneva, Switzerland

Source of information: 2012 (02) – 20th Regional Conference of Dermatology (RCD) – Manila, Philippines

Category : Lasers pour traiter la pigmentation. - Modifie le 02.22.2012Category : Lasers to treat pigmentation - Modifie le 02.22.2012