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Pico Laser VS Q-switched Laser

Pico Laser VS Q-switched Laser

In this laser pigment series, I will address common pigmentation concerns in Singaporeans, and share my opinion on the debate, picolaser vs Q-switched laser, which is better?

What is a Q-switched laser?

The laser fires energy in short nanosecond pulses. These pulses break down pigmentation, and your body’s immune system, your macrophages, will gradually remove it.

What is a picosecond laser?


It is an advancedtechnology from traditional Q-switched lasers, firing beams 10 times faster, hence feels less warm on your skin.

What is the benefit of a picosecond laser vs a Q-switched laser?


Traditionally, we have been using the Q-switched laserwhichdoes effectively address majority of pigmentations. It’sexcellent for large stubborn pigments like sunspotsand Horis Nevus.Studies demonstrate that pico laser is superior to Q-switched laserfor:

  1. Tattoo removal
  2. Stubborn pigmentation ( A good example is melasma, which occur in 20% of the pigmentation patients I see in my clinic)
  3. Pores and superficial acne scars

What is the cost of each laser treatment?

Qswitched laser: Cost varies depending on the duration of treatment, type of pigmentation, and expertise of your doctor. It can range from $100 –$500
Pico laser:Costalsovaries depending on the duration of treatment, type of pigmentation, and expertise of your doctor.Prices range from $300 – $750

What are the side effects of pico laser compared to a Q- switched laser?

A picosecond laser, by virtual of its shorter pulse of energy,

  1. Is less painful
  2. Has less PIH risk (post-inflammatory hyperpigmentation)
  3. And in event of PIH, tends to be less severe and lasts shorter duration


But the downside of picosecond laser is:

  1. Less glow and radiance post laser compared to Q-switched laser
  2. Less effective for bigger pigments
  3. More costly than Q-switched laser

Can we effectively combine both lasers?


Yes, in certain pigments, we can use a Q-switched laser to break down large pigments into smaller ones, followed by a pico laser to shatter the small pigments further.
Finally, the key is still, sunblock. Stay in the shade and away from too much sunshine.

The conclusion:

So pico laser vs Q-switched laser, which is better?
In my experience, I think the question to ask is, which laser treatment is most suitable for me. Both lasers have pros and cons, so ultimately, it depends on your skin condition and expectation.

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