Options to camouflage or remove unwanted hair include plucking, shaving, bleaching, using creams and epilation (using a device that pulls out multiple hairs at once).
Longer-term options include electrolysis, which uses an electrical current to destroy individual hair follicles, and laser therapy.
So what is laser therapy? What can it achieve? And what are the side-effects?
How does laser treatment work?
Lasers emit a wavelength of light with a specific single colour. When targeted to the skin, the energy from the light is transferred to the skin and hair pigment melanin. This heats up and damages the surrounding tissue.
But to remove hair permanently and to minimise damage to the surrounding tissue, the laser needs to be targeted to specific cells. These are the hair follicle stem cells, which sit in part of the hair known as the hair bulge.
Will it remove hair permanently?
Laser treatment can either permanently reduce the density of the hair or permanently remove unwanted hair.
Permanent reduction in hair density means some hairs will regrow after a single course of therapy and patients will need ongoing laser treatment.
Permanent hair removal means none of the hairs in the treated area will regrow after a single course of therapy and no ongoing laser therapy is needed.
Whether hair is removed permanently or just reduced in density is influenced by:
- the colour and thickness of the hairs being treated
- the colour of the patient’s skin
- the type and quality of the laser used, and
- the competence and training of the person operating the laser.
However, if you have grey hairs, which have no melanin pigmentation, currently available lasers don’t work.
How many treatments will I need?
The number of treatments you’ll need depends on your Fitzpatrick skin type. This classifies your skin by colour, its sun sensitivity and its likelihood to tan.
Pale or white skin, burns easily, rarely tans (Fitzpatrick types 1 and 2) People with dark hair can usually achieve permanent hair removal with 4-6 treatments every 4-6 weeks. People with fair hair will generally only achieve permanent hair reduction and after an initial course of treatment may need 6-12 treatments a month apart.
Moderate brown to dark brown skin, rarely burns, tans well or to moderate brown (type 4 and 5) People with dark hair can usually achieve permanent hair reduction with 6-10 treatments every 4-6 weeks. Maintenance will usually be required with 3-6 monthly repeat treatments. People with fair hair are unlikely to respond. People with dark hair can usually achieve permanent hair removal with 6-10 treatments every 4-6 weeks. People with fair hair will generally only achieve permanent hair reduction and after an initial course of treatment may require 3-6 repeat treatments a month apart.
Re-treatments must be long enough apart to allow new hair growth to reach the level of the bulge.
Source/Read more at – https://theconversation.com/thinking-of-laser-hair-removal-heres-what-you-need-to-know-113561