Laser hair removal - how long does it last?

Laser hair removal is a non-invasive procedure that allows for permanent removal of unwanted hair. Its action is based on the principle of photothermolysis. A specialist emits a focused beam of light using a diode, alexandrite, or Nd:YAG laser.

The light of precisely selected wavelength is absorbed by melanin – the pigment present in hair bulbs and shafts. The absorbed thermal energy effectively destroys the hair follicle and papilla, permanently preventing further hair growth. For the procedure to be effective, the hair should be in the active growth phase known as anagen.

Laser hair removal is currently the most effective and longest-lasting method of getting rid of unwanted hair. To achieve optimal results, it is necessary to undergo a series of treatments, which can remove between 90% and 95% of the hair.

The laser works by precisely damaging the hair follicles, effectively preventing their future regeneration. As a result, the skin becomes incredibly smooth, and the effect can last for many years, often even a lifetime.

However, it is worth remembering that complete removal of 100% of the hair is practically impossible. Occasionally, individual hairs may regrow, but they are then much thinner, lighter, and weaker. This is a huge advantage compared to traditional hair removal methods, which only provide short-term results and require continuous repetition of treatments.

To enjoy smooth skin after laser hair removal, usually you need to undergo from 6 to 8 sessions. However, the exact number may vary. The key factor is the hair growth cycle.

The laser is effective only on hairs in the active growth phase, called anagen. Not all hairs grow at the same time, so a single session removes only 20-30% of the hair. That's why multiple sessions are necessary.

Sessions are typically scheduled every **4-8 weeks**, allowing for the gradual elimination of hairs entering the active growth phase.

The effectiveness and durability of laser hair removal depend on many factors. A key factor is the appropriate contrast between dark hair and light skin - this is when the hair most effectively absorbs energy, ensuring optimal treatment results. The thickness, density, and overall structure of the hair are also important.

A stable level of hormones is extremely important. Unfortunately, any disruptions, such as PCOS, thyroid problems, high levels of androgens, or hirsutism, can negatively affect the results of hair removal. In such cases, a greater number of treatments are often necessary, and sometimes even simultaneous hormonal treatment is required to minimize hair regrowth.

Other factors that influence the durability of laser hair removal results include:

• genetics,
• age - the best results are observed after the period of puberty,
• medications taken,
• obesity,
• stress levels,
• use of anabolic steroids.

An experienced cosmetologist always takes all these aspects into account to precisely tailor the treatment plan and ensure the best possible results.

After completing a full series of laser treatments, hair regrowth is minimal. Any individual hairs that may appear are usually sparse and weakened. They are unable to regenerate, even if not completely eliminated.

Immediately after the session, damaged hairs start to fall out. This natural process typically lasts from 1 to 3 weeks.

To maintain perfect smoothness of the skin after laser hair removal, it is recommended to undergo maintenance treatments. Usually, one session is enough, which is done once a year, sometimes even less frequently – for example, every few years. It is important to remember that new hairs may grow from dormant hair follicles, often activated by hormonal changes caused by pregnancy, menopause, or stress. Through maintenance sessions, you can significantly prolong the smoothness of your skin, allowing you to enjoy the effects of hair removal for years.

For lasting effects of laser hair removal, proper skin care after the procedure is essential. Immediately after the session, the skin may be irritated, so it is recommended to use soothing cosmetics that will help its regeneration.

For the first 2-3 days after the procedure, it is advisable to avoid hot baths, using the sauna, and swimming pool. Sun protection is also extremely important. For at least 4 weeks after the procedure, regularly apply a sunscreen with SPF 50 to the treated areas of the body. This way you will significantly reduce the risk of complications such as discoloration or swelling.