Mechanism of laser or light-assisted hair removal is based on the principle of selective photothermolysis with wavelengths of light well absorbed by follicular melanin and pulse durations that selectively thermally damage the target without damaging surrounding tissue. The diode (800 and 810 nm) laser can be used on all skin types, while the best results are achieved on darker hair. This is one of the most commonly used lasers for hair removal nowadays.
The Diode laser hair removal system is a process that involves concentrated heat and light beam. This beam is directed into the hair follicles and consequently to the melanin contained inside them. As a result, pigment absorbs the provided laser energy and inhibits as well as destroys the hair growth in the affected hair follicles. In addition to this, this laser energy also ensures the protection of surrounding skin from harm simultaneously. As such there are minimal side effects of laser hair removal, but there can be redness on the treated area at times.
Laser hair removal methods are in use for a long time. With the evolution of technology, its effectiveness has also improved. During the initial stage, the process used to be painful and only intended for small hair type range. Using it, you can just remove black hair on light skin.
However, now the case is pretty different. The wide range of laser allows you to remove various hair type in an individual having varying pigment size. Some common lasers are an alexandrite laser, diode laser, and ruby laser. Another point to take into account is laser effectiveness is directly proportional to the laser choice.
On the whole, diode laser stands league ahead of its humble counterparts as this laser is not entirely dependent on the skin pigmentation. Note: For patients with darker skin, Yag laser is quite useful because it also reduced burns, scarring, and discoloration chances.
The overall processing of the Diode laser is very simple and straightforward. It involves following 3 steps:
Step 1: As a first step, technician emits highly-concentrated light energy impulses into hair follicles.
Step 2: The penetrated light is absorbed by the pigment available in the hair follicles.
Step 3: Next, vaporisation takes place due to hair shaft heating.
Please note this heat is restricted and selective for hair follicles. Thus, there are minimal chances of burns and other side effects.
Laser Hair Removal for Fair Skin and Blonde Hair
When it comes to blonde hair and fair skin, traditional laser hair removal technique is not reliable. Reason being, laser’s heat source gets attracted towards the pigment, and blonde hair does not feature enough pigment for attraction. This technique also does not work over gray hair.
The effectiveness of laser hair removal technique depends mainly on the type of hair as there are several types of hair. In comparison to fine hair, laser hair removal process for thick hair is more effective. This is because; in thick hair, the laser can efficiently target the melanin present in the hair and can destroy the follicle. However, individual with light-colored and fine hair also need not worry. Using smart techniques, you can even relish the benefits of laser hair removal.