Current Concepts in Aesthetic Laser Medicine: The 694-Nm Q-Switched Ruby-Laser

*Peter Arne Gerber,1 Said Hilton2

1. Department of Dermatology, Medical Faculty, University of Düsseldorf, Düsseldorf, Germany
2. Medical Skin Center, Dr. Hilton, Düsseldorf, Germany
*Correspondence to

Disclosure: PAG has received honoraria for oral presentations by Asclepion Laser Technologies. SH has no potential conflict of interest.
Received: 21.04.14 Accepted: 16.07.14
Citation: EMJ Dermatol. 2014;2:56-60.


Quality-switched (q-switched) laser systems are the gold standard for the treatment of benign pigmented lesions and tattoo removal. A frequently used system is the q-switched ruby laser that emits monochromatic light at the wavelength of 694 nm. This system is used for the removal of age spots (senile lentigines), seborrhoeic keratosis, tattoos, and other dyschromatoses. The increasing need for the removal of, for example, age spots and unwanted tattoos, reflects both the wish of our ageing society to preserve a youthful appearance and the steadily growing prevalence of tattoos. This review highlights the potential, limitations, and novel treatment concepts of using q-switched ruby laser systems.

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