Wavelength

Principles of Laser Hair Removal

Hair removal with a laser is based on the principle of selective photothermolysis: Energy is applied to the treatment area so as to maximize damage to the target structures while minimizing the effects to the surrounding tissue.

For hair removal, the target structures are the melanin pigments in the hair follicles.

Because of the high absorption of 755 nm alexandrite laser beams by melanin, not all skin types can be treated. With darker skin types (skin types V-VI), that contain more melanin than lighter skin types, inacceptable thermal skin damage occurs when an effective energy level is selected. For this reason, ARION should only be used for hair removal of skin types I - IV.

For long-term hair removal using a laser, normally
3 - 6 treatments are necessary, because only hairs in the growth phase have enough melanin in their roots to react to a laser treatment.

 

Principle of Treating Veins

The alexandrite laser ARION also operates according to the principle of selective photothermolysis for treating superficial veins: in this case, oxidized hemoglobin is the target structure.

  • The laser beam penetrates the epidermis and is absorbed by hemoglobin in the veins
  • The absorbed radiation is converted to heat; the blood coagulates or evaporates and the veins are damaged
  • The veins collapse, sclerosis begins. The veins are then absorbed by the body over the next couple of months

Pigmented lesions

For treating pigmented lesions, the target structure is the melanin in the particular area of the skin. The laser beam destroys it and the body decomposes the melanin.

Statements:

Prof. Dr. Uwe Paasch:
"...For hair removal, the alexandrite laser system ARION is our system of choice." > mehr

Mitchel Goldman, MD:
"The ARION is a great laser that is fast and effective..." > mehr

Legal Advice
Product specifications and approved applications may vary for products sold in the United States of America.
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