Laser hair removal is based on the selective photothermal principle. The selected wavelength only acts on melanin and does not act on sweat gland tissue, so it will not cause damage to sweat gland.
Why can laser depilate?
The pulse width selected for laser hair removal will act on the melanin in the hair follicle and destroy the hair follicle to achieve the effect of hair removal. Can laser depilate permanently?
In fact, the concept of permanent hair removal is translated from permanent hair remove. If it is translated into permanent hair removal, it may be more scientific.
At present, the international standard is: if a hair removal method does not have obvious hair growth for a long time (such as 1-2 years) after the treatment, then this hair removal treatment method belongs to permanent hair removal.
How many times does laser hair removal need?
The therapeutic effect of laser hair removal is determined by the number of treatments, treatment interval, energy during treatment, individual differences of the body and many other aspects. Generally speaking, the more times of treatment, the more likely it is to achieve the purpose of permanent hair removal. If the number of treatment is too small, the effect of treatment will be temporary.