Laser Treatment for Acne

Pulsed dye lasers have recently been used to treat inflammatory cutaneous disorders.  They are similar to KTP lasers but emit 585 nm yellow light.  While they do not reduce P. acnes populations or oil secretion, they are thought to reduce inflammation by stimulating the production of the anti-inflammatory molecule TGF-β (transforming growth factor beta).  Clinical trials with pulsed dye laser treatment found that treatment regimens of 6-12 weeks could reduce the number of inflammatory lesions (zits) on subject’s faces by about 50%.  Like other lasers, pulsed dye lasers have been found to be well-tolerated by patients.  It is also safe to use if you are already using other acne therapies, such as topical creams or chemical peels.

1320, 1450, and 1540 nm lasers emit photons in the infrared (IR) spectrum.  These are able to penetrate deeper into the skin than shorter wavelengths of light, such as in green and yellow lasers.  Lasers of 1320 nm wavelengths are effective in reducing inflammatory lesions and oil secretion in patients with moderate to severe acne.  Studies on 1540 nm erbium lasers likewise found them to be helpful in reducing acne in patients with moderate to severe cases, with results still maintained at their 2-year follow-up appointments.  1450 nm diode lasers offer the quickest relief, however.  Improvements can be seen after just one treatment with a 1450 nm diode laser. In one trial, the number of lesions was reduced by 83% after three treatments at 4- or 6-week intervals. 

IR lasers have been some of the most effective, long-lasting treatments for acne in recent times.  So, if you are thinking of trying a longer-term therapy for a tougher case of acne, this may be the place to start.  Each of these lasers have been generally well-tolerated, meaning you likely will experience very little discomfort.