Here are some Frequently Asked Questions (FAQs) about laser hair removal treatment
How laser hair removal works?
When treating hair, the energy emitted by the high-power diode laser must penetrate several millimeters into the skin to reach the root of the hair. When it meets the melanin in the hair (brown color), the light is absorbed, and is converted into heat. The darker, thicker and denser the hair, the more heat is produced. This heat damages the cells responsible for hair regrowth within the hair and in the immediate area around the hair. This ensures a drastic reduction in hair in the treated area.
How many treatments will I need?
The hair alternates between periods of growth (anagen) and no growth (telogen). The transition between the two periods is characterized by an interruption in bulb cell proliferation; this intermediate phase is called catagen. In humans, each hair is in a different phase of growth. During a hair removal session, all the hairs are targeted, but in a certain area, only a specific percentage of hair reacts to the laser treatment which are in anagen(growth) phase. Therefore, a series of laser sessions is always necessary. How many sessions are needed varies on a case by case basis and depends upon hair, skin type as well as on genetic and hormonal predisposition. Normally, six to eight sessions per area are needed to reach hair reduction of up to 90%.
Can all hair be treated?
Since the laser beam targets the pigment contained in the hair, all pigmented hair will react very well to treatment. Hair from very dark to dark blond can be treated effectively, while white or grey hair will not respond to the treatment. In general, the darker the hair, the better the absorption of light and therefore the better the results.
Is the laser procedure effective?
The effectiveness and outcome of the treatment depends on the color, thickness and depth of the hair as well as hormone levels. It is important to set up a treatment plan with your dermatologist based on your skin type and hair consistency.
What kind of results should I expect?
The scientific literature shows that, 12 months following the end of treatment, the effects with latest generation lasers are very good. Depending on genetics and hormonal changes fresh up treatments can be necessary.
What is the course of treatment?
First, the hair will be shaved to avoid the absorption of the light by the hair laying on the skin.After that, all dark spots on the skin (e.g. moles) are covered with a white pencil and a thin layer of transparent gel is applied to the skin. The hand piece of the laser is moved over the parts of the skin to be treated. The laser sends a light impulse, which creates a gentle prickling sensation. The treatment is very comfortable.
What happens after the treatment?
Following the treatment, redness of the skin, strong sensations of warmth or wheals can occur. Overall, the effect is like a light sunburn and disappears in a few hours after the treatment. The hairs dissolve after between five days and two weeks, or fallout.
How much time between treatments is there?
The treatment is normally performed at an interval of four to eight weeks, when definite hair growth is noticeable.
What complications can occur?
The treatment with is effective and safe on all skin types. Lightening of the skin or hyper-pigmentation can temporarily occur. A slight erythema, particularly perifollicular erythema, can develop especially for dark, thick hair. In any case, all these effects are reversible and will disappear within a few weeks. For further information about possible side effects please ask your dermatologist.