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A. Selective Photothermolysis:

The fundamental principle behind laser hair removal is a concept called selective photothermolysis. Selective photothermolysis involves using a specific wavelength of laser light that is absorbed by the target tissue (in this case, melanin in the hair follicle) while minimizing damage to surrounding tissues.

B. Targeting Melanin:

Melanin is the pigment responsible for the color of our skin and hair. The laser used in hair removal is designed to target the melanin in the hair follicle. When light is emitted, it’s absorbed by the melanin in the hair shaft and follicle. The absorbed laser energy is converted into heat that will damages the hair follicle, specifically the cells responsible for hair growth

C. Hair Growth Cycle:

The effectiveness of laser hair removal is closely tied to the hair growth cycle, which consists of three phases: anagen, catagen, and telogen. The anagen phase is the most critical for laser treatment.

D. Skin Cooling:

Cooling mechanisms are often used to protect the skin surface and reduce discomfort during treatment. The cooling must be adjusted based on the individual’s skin type, hair color… It is also not possible to use a high degree of cooling because that will damage the skin, so the degree of cooling must be moderate.

E. Permanent Hair Reduction:

Laser hair removal can lead to a significant reduction in hair growth, and in many cases, it can be almost permanent.


F. Safety Precautions:

Proper training and safety measures are crucial in laser hair removal to minimize the risk of skin damage or other side effects. Make sure to inform your clients about the “before and after” guidelines

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