- Size of the area being treated and time required for treatment.
- Number of treatments required.
Melanin occurs naturally in the skin and gives the skin and hair their color There are two types of melanin in hair. Eumelanin gives hair brown or black color, while pheomelanin gives hair blonde or red color.
Laser hair removal has become popular because of its speed and efficacy, although some of the efficacy is dependent upon the skill and experience of the laser operator and the choice and availability of different laser technologies used for the procedure. Some will need touch-up treatments, especially on large areas, after the initial set of 3-8 treatments.
- Laser use is so precise since it can selectively choose dark, coarse hairs while leaving the surrounding skin in good condition.
- Laser pulse’ takes each a fraction of a second and can treat a number of hairs simultaneously. It can treat a quarter of an area every second thus saving time. Small areas such as the upper lip can be treated in less than a minute, and large areas, such as the back or legs, may take up to an hour.