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Usage of LASER in Dermatology and Skin Care

Written by
Dr. Suvash Sahu
and medically reviewed by iCliniq medical review team.

Published on Oct 13, 2016 and last reviewed on Apr 07, 2022   -  5 min read


The commonly used lasers in dermatology and also their advantages and disadvantages are discussed in this article in detail.

Usage of LASER in Dermatology and Skin Care


The word LASER is an acronym for light amplification by stimulated emission of radiation. Lasers have been widely used in dermatology and general medicine for the last 30 years. No single laser system is capable of treating all cutaneous lesions, and the search for the perfect system still persists.

What Are the Properties of Lasers?

Laser radiation as a form of light is a part of the electromagnetic spectrum. The laser light differs from the normal light in a number of aspects:

  1. Laser light is monochromatic. It consists of a single wavelength.

  2. Laser light is coherent. The waves of energy are in phase with each other.

  3. Laser light is also collimated; that is, the rays are always parallel to each other.

What Is the Mechanism of Action of Lasers?

When a beam of light falls on the skin surface, it may reflect back, may scatter within the tissue, or get absorbed by the tissue. Only the absorbed light will bring out the biological reactions. Once absorbed, the light energy is converted into heat energy. When tissues are heated to about 60 degrees Celsius, protein denaturation will occur and lead to tissue necrosis. If a tissue is very rapidly brought to 100 degrees Celsius, cellular water will be converted to steam, which brings about the explosion of the cell wall. This is known as vaporization. This type of destruction minimizes thermal damage to adjacent tissues.

What Are the Types of Lasers?

There are several types of lasers. They are;

  1. CO2 laser.

  2. Erbium laser.

  3. Holmium laser.

  1. Argon laser.

  2. Pulsed dye laser.

  3. Neodymium: yttrium-aluminum-garnet [Nd: YAG] laser.

  4. Diode laser.

  5. Holmium laser.

  6. Krypton laser.

  7. Excimer laser.

  8. Q- switched ruby laser.

  9. Copper vapor laser.

  10. Flash lamp Q switched alexandrite laser.

What Are the Uses of Carbon Dioxide Lasers?

Where Are Er: YAG Lasers Indicated?

What Are the Clinical Indications of Vascular Lasers?

What Are the Other Uses of Lasers in Dermatology?

How Are Lasers Helpful to Remove Tattoos?

The QS laser system helps destroy the tattoo without causing much damage to the surrounding tissues. The tattoo pigment is removed from the skin by scavenging the tissue macrophages and white blood cells. The choice of laser for tattoo removal depends on the color, depth, and chemical nature of the ink used for the tattoo. Two to ten treatments are often necessary for tattoo removal, where yellow, green, and orange are the most difficult colors to remove. The lasers used for the removal of black, green, yellow, orange, and red inks are,

What Are the Complications of Laser Treatment?

Laser treatments can cause some adverse effects, such as burns. Some side effects that may occur are,

What Are the Advantages and Disadvantages of Lasers?



What Are the Laser Safety Measures to Be Followed?

The safety precautions will depend on the type of laser system used and where the procedure is done. They are,

Article Resources

Last reviewed at:
07 Apr 2022  -  5 min read




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