Epilation, or removal of the hair under the skin, was conducted experimentally by Laser for twenty odd years before it formally entered the market in the 1990s. Photoepilation or phototricholysis are classified as laser-based methods.
There are hair removal techniques associated with lasers using the xenon flash lamp that gives out IPL (Intense pulsed light). This is not entirely a laser therapy, however. The ultimate principle behind laser hair removal is selective photothermolysis. In areas that trigger hair growth, lasers cause harm by exclusively heating dark matter. Dark matter or chromophore absorbs laser treatment rather than light matter more intensively.Laser Hair Removal Las Vegas offers excellent info on this.
One of the three chromophores is targeting laser-based therapy: carbon that is chemically inserted in the hair follicle; haemoglobin that gives blood its natural red colour; and melanin, a black pigment found in skin, hair and eyes, et al., which is America’s leading laser-based treatment chromophore.
Lasers are useful for surface skin procedures such as removing birthmarks and tattoos, since in contrast to hair, the targeted region is even in colour and depth. Hairs can also differ in diameter, depth and colour. This irregularity makes recovery a little more complex. Hairs of varying widths are treated differently with laser therapy. Without overheating the surface skin, laser-based treatment cannot be an effective enemy of deep-rooted hair. The more melanin you have in the hair, or the darker the hair, the more laser therapy is successful. A individual with coloured hair, for instance, is not considered to be the perfect candidate for laser treatment.
And, melanin gives a darker look to the skin. Characteristically, individuals with fairer skin have less melanin on their skin. Darker skinned individuals have more. The laser is unable to distinguish between melanin in the skin and hair. As a consequence, medication is usually absorbed by the skin in darker skinned individuals. Lighter skin does not guarantee that the treatment will be better. The skin tone and hair colour should in reality, be as different as possible for the best results.