The Q-switched Nd: YAG laser takes selective photothermolysis theory to treat
oigment skin diseases. The target base is melanin, because of its high peak power,
and the pulse width is nanosecond level. the thermal relaxation time which is for
melanin cells and the melanin from keratin formation is very short, so it can make
the melanin particles instantaneous blasting and break them into very small
ragments, ultimately gets eliminated by the lymphatic system. Meanwhile, it will
not damage the surrounding normal tissues.
The laser penetration of 1064nm is very strong, be used to treat deep skin
lesion, such as dark blue tattoos, nevus of ota, etc.
532nm is used to treat superficial pigmentation diseases, such as freckles,
Beijing Sincoheren S & T Development Co., Ltd.