Description

LASER HAIR REMOVAL

Hair follicles are found in one of three phases in the body. Active growth phase (anagen), regression or regression phase (catagen), resting phase (telogen). Depending on the body region, the rates of hairs being in the anagen and telogen phase and the residence time in the anagen phase vary. While the rate of the hair follicle in the anagen phase in the scalp is 85%, this rate is 56-76% and 42-51% in the extremities. The duration of the anagen phase in the scalp varies from 1 to several years, while in other parts of the body it ranges from 4 to 10 months. Theoretically, laser hair removal devices affect all of the hair growth phases in the anagen phase. The operating principle of the laser is selective thermolysis. The laser light targets the pigmented dark part and creates a burn there. Since all hair follicles cannot be in the anagen phase in an epilation session, they should be performed in repetitive sessions. Due to the interaction with the pigment on the surface of the skin, the most suitable individuals for laser epilation are those with light skin color and thick hair. Laser epilation on a tanned skin should be avoided, or treatment parameters should be readjusted to suit the bronze skin. Laser epilation is ineffective in bleached white hairs. Similarly, the yellow, red, light brown hair color and the thinness of the hairs reduce the effectiveness of laser hair removal. Session intervals should be 4-8 weeks. Lasers of different wavelengths are used for hair removal. Ruby (694 nm), Alexandrite (755 nm), Diode (810 nm), Nd: YAG (1064 nm) are the wavelengths used in laser hair removal. Diode (800-810 nm) lasers are also used frequently in laser hair removal. Diode laser hair removal application is safe for individuals with skin phototype I-V. In a study where diode laser was used with 9 mm spot width, 5-30 millisecond pulse duration and 15-40 Joule / cm2 dose, 84% decrease was detected in hairs 1 year after 4 sessions. It is expected that almost all hairs in the treated area will be shed within 1-3 weeks after the application. However, roughly 15-35% of the shedding hairs are shed for a long time or permanently. Moreover, the hairs applied in the first 15 days can continue to grow a little longer before they are shed. Perifollicular erythema and edema (redness and swelling) occurring during application disappear for about 2 days to 1 week. Today, 35-40% of the people who apply laser epilation are male patients. Often, male patients who apply laser epilation for hairs on the beard, inter-eyebrow, neck, neck, arms, armpits, shoulders, back, chest and legs are generally more likely to achieve laser epilation success due to the harder and darker hair structure. Although they are said to be more advantageous, clinical observations suggest that testosterone-active male patients have lower laser epilation success than female patients. Especially in men, the back and neck regions are accepted as resistant-to-laser-epilation-areas and more sessions and beats may be needed. Laser hair removal during pregnancy is not recommended as there is no definite study. The risk of complications is very low when an appropriate treatment plan is created for the patient. Rarely minor burns and pigment changes may occur. In general, these complaints are temporary.