How to use Q-switched lasers.

Quality-switched lasers (Q-switched) are non-invasive lasers that generate high-intensity pulsed light beams. A pulse in a Q-switched laser beam lasts only a billionth of a second. The energy emitted by a Q-switched laser is concentrated into a very intense pulse.

This article explains how Q-switched lasers are used, the different types, and how they are used for tattoo removal.

Already used

Q-switched lasers can pulverize tiny particles of pigment and ink, stimulate collagen production, and kill fungi. .

Q-Switched lasers are used for many conditions, including:

  • tattoo removal
  • Onychomycosis (toenail fungus) treatment
  • Pigmented lesions such as blemishes, sunburns, moles, freckles, moles, cafe au lait
  • Vascular lesions such as spider veins, telangiectasias, hemangiomas, and port wine stains
  • skin rejuvenation

Types of Q-switched lasers

There are several types of Q-switched lasers. A crystal rod inside the laser differentiates the laser. The rods allow Q-switched lasers to generate different wavelengths. These tunable wavelengths determine the applications of Q-switched lasers.

Q-switched lasers include:

Laser type and color removal.

  • Nd-YAG laser(black blue red orange)
  • Ruby laser(black blue green)
  • Alexandrite laser(black blue green)

Every patient is different, but every tattoo removed is different. Different laser wavelengths are needed to remove different colors of tattoo ink.

Q-switch laser tattoo removal process

Laser tattoo removal is the only method proven to remove tattoos without leaving scars. To remove a tattoo, a Q-switched laser is pulsed across the tattoo and the light energy is directed at the ink. The energy is absorbed by the ink particles, which shatter into small pieces.

A few days after the laser treatment, the body’s immune system washes away the fragmented ink particles and the tattoo disappears. The more treatments you do, the more ink will shatter and the skin will be tattoo-free.Laser treatments are usually done every 6 weeks. Depending on the size and color of the tattoo, multiple treatments may be required. Only Q-switched lasers can produce the amount of energy to remove both dark and light tattoos without scarring.

We recommend several Q-switch laser beauty machines

Q-Switched ND:YAG Tattoo Removal Laser KR-N5

Q-Switched ND YAG Tattoo Removal Laser Machine KR-Q5

Q-Switched ND:YAG Tattoo Removal Laser KR-Q3


Q-switched lasers are a commonly used laser to help treat many skin conditions, from pigment changes to tattoo removal. The type of laser and the wavelength given is dependent upon each person and the reason they are having laser treatment.

A word from Verywell

Q-switched laser treatment is an effective treatment for skin conditions and tattoo removal. Whatever the reason, always consult your doctor if you have any questions about the procedure or any special instructions for best results.

Frequently Asked Questions

How many Q-Switch laser sessions are required?

The number of sessions you need depends on your reason for laser treatment. For example, using a Q-switched laser to treat toenail fungus may require only two treatments.Q-switched laser tattoo removal may require six or more treatments. .

Are pico lasers and Q-switched lasers the same?

They are similar but not the same. The length of time the laser is administered has given it the name picolaser. Picosecond lasers have been shown to be more effective than nanosecond lasers (such as Q-switched lasers).

Are Q-switched laser results permanent?

Yes, Q-switched laser results are permanent.

How long does it take for Q-switch laser wounds to heal?

Healing time varies depending on the procedure in which the Q-switched laser is used, but usually takes several weeks.

What are the risks and side effects?

As the treated freckles disappear and the scabs heal, red or brown spots may appear. However, this new spot is temporary and usually fades away on its own.

It is treatable if it persists. Infections and scars are rare. Proper skin care and sun protection are important.

Possible risks and side effects will be discussed with you prior to treatment by your cosmetic coordinator and medical supervisor.

Is it safe?

Q-switched laser treatment is a gentle alternative that requires fewer sessions than skin resurfacing procedures for similar results.

This greatly reduces the chance of side effects. This will not thin your skin.


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