Laser Hair Removal
Laser (Light Amplification with Simulated Emission of Radiation) is a method of transmitting energy to structures within or just below the skin by means of a light beam which specifically targets a particular type of tissue. The light energy is absorbed by the target tissue and gets converted into heat giving rise to the desired result.
How is laser effective in removing hair?
Laser treatment is effective in treating dark hair. Lasers are dependent upon the pigment in the hair for absorption of light energy which is then converted into heat and destroys the hair root. If the hair is very light this absorption cannot occur and the laser is not effective in treating excess hair.
What does the treatment involve?
Laser hair removal is done as an outpatient procedure and does not require any specific preparation. The laser treatment is conducted in a special laser room. Eye protection is worn and the site from which hair is to be removed is shaved leaving a short stubble to absorb the laser energy. The area is cooled with an ice bag to minimise discomfort and is then treated with a laser of a particular frequency which is only absorbed by the hair follicles and does not damage the surrounding skin. Patients commonly describe the sensation of being treated with a laser as being similar to an elastic band being flicked against the skin.
What is the normal postoperative course?
Some patients may experience minor irritation of the skin at the site of laser treatment which is adequately treated by the use of a topical application such as aloe vera gel. This skin irritation subsides within a few days.
What precautions should I take after laser treatment?
Extremes of temperature such as a very hot bath and shower or very cold water should be avoided as this can be slightly uncomfortable. Patients are also instructed to avoid exposure to direct sunlight.
What can I realistically expect from laser treatment?
The first treatment is usually a test patch to see if the area of hair bearing skin will respond well to the laser. If this treatment is successful than most patients require between three and six and sometimes up to ten treatment sessions to see a significant change. These changes brought about by a reduction in the total number of hair shafts, a decrease in the density of hair growth and re-growth of thinner and softer hair.
Are there any complications from laser treatment?
Patients of Asian or Afro-Caribbean extraction may see long-standing changes in the pigmentation of the skin around the hair follicles. The skin may become permanently hypopigmented or hyperpigmented although this is unusual.