1) refrain from visiting the beach and solarium 2 weeks before the procedure
2) 4 weeks before the start of the course of laser hair removal, you should stop pulling out your hair in any way (wax, sugaring, tweezers, mechanical epilator, etc.)
3) shave your hair with a conventional machine for 1 day or on the day of visiting the salon – the procedure is performed exclusively on smooth skin 
4) immediately before the procedure, clean the skin on the areas of the body where hair removal will be performed – no need to use deodorant, foundation, etc.

After the procedure of hair removal with a diode laser, skin requires a recovery period, so please

• Refrain from deep peeling of the face, if the procedure was on it, of course
  
• Do not use hair removal procedures related to the removal of hair from the root (wax, tweezers, sugaring or mechanical epilator)
  
• Try not to sunbathe in the sun or in a solarium for 2 weeks.
  

The effectiveness of laser hair removal has been proven by many years of practice. The most modern and safe laser for this procedure is the diode laser that we use.
After the first hair removal session, at least 20% of the hair follicles on the treated area of the body are destroyed. With further procedures, the result is preserved, and each time at least 15-20% of the hair follicles are destroyed.
The hair removal procedure is repeated until the hair growth stops completely. The number of procedures required and the intervals between them depend on the client's hair structure. Different parts of the body may require a different number of repetitions of procedures, but the average course is up to 10 sessions for women and up to 12 for men with an interval of 3-5 weeks.
The achieved result lasts for a long time, but nevertheless the hair follicles tend to recover, the period usually varies from 1 to 8 years – this is exactly the period for which you can forget the word "hair removal". The recovery period of the follicle depends solely on the individual characteristics of a person (hormonal background in the first place).

The effectiveness of laser hair removal procedures directly depends on the device on which they are performed. Nowadays, there are four lasers on the market that differ in wavelength:

• Ruby (694 nm)
• Alexandrite (755 nm)
  
• Diode (808 nm)
  
• Neodymium (1064 nm)

Diode is considered to be the best one, since it focuses the rays to the required depth of penetration. When using a diode laser, there is no such heating of the skin as in others, which often leads to burns.
Diode lasers can be successfully used to remove hair of any color (except gray), and on all skin types: from pale Scandinavian to dark African.
You can find a ruby laser only in the most outdated models of cosmetology equipment, it can be used with a small degree of success, only on fair skin and only to remove dark hair.
The alexandrite laser is still in high demand and popular, it can be used to remove not only dark hair, but also brown hair, but light hair remains beyond its control, as well as its use on dark skin. If you decide to have the procedure with an alexandrite laser, make sure that your master is qualified, as there is an increased risk of getting burned.
The neodymium laser differs from all others in its principle of action, it does not affect melanin, but directly on hair cells in the growth phase (oxyhemoglobin). It, like diode, can be successfully applied to all skin types and hair colors. But a significant disadvantage of it is the sufficient painfulness of the procedures performed. Such a laser has found greater use for the removal of vascular meshes, warts and the treatment of varicose veins.

The principle of laser hair removal is based on the action of a narrowly directed beam of light waves of a specially selected length on the hair follicle. Penetrating to a depth of 3.5 mm from the surface of the skin, these waves affect only the bulb (the root of the hair) and do not affect the rest of the cells of the epidermis. During laser hair removal, the melanin contained in the hair absorbs the light directed at it (laser flashes), which leads to heating of the hair from the inside and subsequent destruction of the hair follicle and its feeding vessel. After being exposed to this effect, the hair soon falls out along with the root, painlessly and for several years until the natural restoration of the follicle. All hair in the active growth phase (visible on the skin surface) falls out within 2 weeks after the first procedure. The remaining hairs, which were in an inactive phase or in the process of preparing for growth at the time of the session, are removed during repeated procedures (a total of 6-10 sessions) – when they become visible on the skin surface and are thus accessible to laser radiation.