Why do you need several sessions of laser hair removal?
You will need a various number of sessions to achieve permanent laser hair removal because the life cycle of a hair follicle is divided into three phases. The first phase is called the anagen phase, and this is when the hair starts to grow. At the time of the second phase, called catagen, the hair will have detached from the bulb and then enters the third phase, called telogen. This is the point at which there is a loss of hair. This cycle lasts between 8 to 18 months, varied upon the area treated and the personal characteristics of each individual.
During the 2nd phase, the hair becomes detached from the bulb. When this occurs hair removal will not be effective because the laser light energy is not conducted to the bulb. As a result, the hair will not be destroyed, and new growth can be expected.
Because the hair growth cycle is different for everyone, you will understand why we need a various number of sessions to complete the hair removal process. The number of hair removal sessions depends on the treatment area, skin type and hair growth rate of each patient. Generally, 6 to 10 sessions spaced over 4 to 8 weeks is required to permanently eliminate all the hair within the treated area.