How Does Laser Hair Removal Work?
Laser epilation is a medical application that uses a concentrated light beam to remove unwanted hair, it acts on the principle of selective photothermolysis.
Laser epilation acts with the principle of “Selective Photothermolysis”. In selective photothermolysis, light of a certain wavelength is selectively absorbed by the target chromophore. The target chromophore is damaged by heat dissipation within the target. The factors that play a role in the laser-tissue interaction are also valid in the Laser-hair interaction required for an ideal epilation. First of all, the target chromophore for almost all epilation lasers is the melanin pigment that gives color to the hair and skin.
Types of Laser Hair Removal
There are 3 types of laser types used for hair removal. It is important to start laser hair removal with the correct laser type. Before the application, specialist doctors should decide which laser method is suitable for the person by evaluating the skin and hair structure. With this evaluation, the expected success rate from epilation increases and the possibility of side effects decreases.
Alexandrite Laser Hair Removal: Alexandrite Laser has a laser wavelength of 755 nm. It has high melanin absorption, it is used in laser epilation between skin types I-IV. It is most suitable for people with fair skin and dark hair. It is not suitable for use on dark skin and bronze skin. It is necessary to wait for a minimum of 1 month for the skin color to lighten in bronze skin. Its disadvantage is that it can activate quince feathers.
Diode Laser Hair Removal: Diode Laser has a wavelength of 810 nm. It is also safe for dark and tan skins with moderate melanin absorption. It does not activate on quince hairs, it is effective on fine hairs, and can be applied in all seasons. The disadvantage is that it is painful.
Nd:YAG Laser Epilation: Nd:YAG with a wavelength of 1064 nm is suitable for all skin types. It can also be applied in summer. Its disadvantage is that it is painful due to its ability to penetrate deeply.
What are the Factors Affecting the Efficiency of the Application?
- Skin color and structure
- Hair color and structure
- The state of the person’s hormones
- Expertise of the operator
- Personal suitability of the device and laser type
- Continuity of the process in regular sessions