A comprehensive comparison for Pico Laser vs Q-Switched YAG Laser.

Similarities

Similarities1--Pico Laser and Q-Switched YAG Treatment item same. it use for Tattoo Removal and Pigmentation removal, spot removal。

Similarities2--Physio Technical principle Same. Strong laser is irradiated on the pigmented skin in a very short time. The strong light instantly breaks the pigment clusters and decomposes the pigments. Some of the surface pigments are immediately ejected from the body, and some of the deep pigment clusters are disintegrated into small particles at that time, which will be swallowed by macrophages in the human body and discharged from the body through the lymphatic system. The pigments accumulated on the skin surface will completely disappear.
 

Similarity 3--The same selection of applicable bands. 1064NM (removes blue, black, cyan), 532NM (removes red, coffee, brown) are usually selected. 1320nm (uses black face doll cream to treat skin pore contraction and whiten skin)

Difference

Difference 1--The thermal relaxation time acting on the skin is different.
YAG laser units are calculated in nanoseconds, while Pico lasers are calculated in picoseconds.
1 nanosecond = 1000 picoseconds (1ns = 1000ps)
The skin is only damaged by heat for 40NS. Obviously, picoseconds are shorter, so the risk of PICO Laser is smaller.

Difference 2--Different output energy.
YAG lasers are usually handheld handles. The maximum controllable range of laser energy output is 400MJ. (Although many handheld YAG lasers on the market claim to reach 2000MJ)
Pico laser output mode is articulated arm direct output. The maximum energy can reach 2000MJ. (real data)

Difference 3--different treatment focuses.
YAG laser is usually suitable for superficial pigment removal, such as failed eyebrow tattoos, small tattoos, and spots.
Pico laser is more suitable for deep large-area pigment removal. For example, large-area tattoos, Ota nevus, birthmarks. Age spot freckle removal.

Difference 4--different treatment efficiency.
YAG laser has relatively more treatment times and removes lighter pigments.
Pico laser has high energy and can reduce the number of treatments, and large areas of darker pigments can also be easily removed.

Difference 5--more precise and effective treatment of pigmentation
Picosecond lasers are generally considered to be superior in treating pigmentation problems such as melasma, sun spots, and age spots. The ultra-fast pulse duration enables picosecond lasers to break down pigments into smaller particles than Q-switched YAG lasers. These smaller particles are more easily absorbed by the human body and excreted naturally, resulting in faster and more effective removal of dark spots and pigmentation.

In summary, PICO laser also reduces the risk of scarring, pigmentation, and other adverse side effects, relatively speaking.
Therefore, YAG laser is an economical investment, and Pico laser is a more professional choice.