The application of lasers in dermatology has garnered significant attention since the advent of laser technology. Just a year after the invention of the first laser, American physician Goldman initiated research into using lasers for treating skin conditions. Over the past few decades, various lasers for skin treatment have been developed and marketed. Common systems include solid-state lasers like ruby lasers and Nd:YAG lasers, gas lasers such as CO₂ lasers, and dye lasers. Today, we will focus on the application of Q-switched Nd:YAG lasers for pigmented skin disorders.

Each type of pigment has a corresponding absorption peak, so treating pigmented skin disorders requires selecting a laser with a wavelength that matches the target pigment. Additionally, due to the small size of pigment cells or dye molecules and their short thermal relaxation time, Q-switched lasers are the preferred choice. The treatment mechanism is based on selective photothermolysis, whereby heat generated by light selectively destroys the target tissue while minimizing damage to surrounding tissues. This effectively removes abnormal pigment particles without leaving scars. Modern clinical evidence confirms that Q-switched lasers can effectively remove pigmentation and tattoos. For instance:

Q-switched ruby lasers (694 nm) for black pigments

Q-switched alexandrite lasers (755 nm) for blue-green pigments

Q-switched Nd:YAG lasers (1064 nm) for black pigments

Frequency-doubled Q-switched Nd:YAG lasers (532 nm) for red pigments

RealLight has introduced a high-energy solid-state Q-switched Nd:YAG laser that provides dual wavelengths of 1064 nm and 532 nm, addressing a wider range of pigmentation removal scenarios. With a peak power of up to 200 mW, pigment particles absorb energy more rapidly, achieving better results. Its adjustable repetition rate of 1–10 Hz accommodates various treatment needs. The laser also delivers a flat-top beam profile for uniform energy distribution, enhancing treatment outcomes.

Typical Beam Profile

Beam Intensity Distribution

We have delivered numerous innovative and competitive products to customers in the medical aesthetics field and can also provide customized, integrated solutions and superior services based on client needs. RealLight aspires to be your trusted partner, leveraging laser technology to create value for you!

Disclaimer: Some content in this article is sourced from the internet for the purpose of technical research and exchange. It is for reference and learning only. If there are inaccuracies or academic discrepancies, please feel free to point them out. If there are copyright issues, please contact us, and we will promptly verify and remove the content.