How Permanent is Laser Hair Removal?

This is a good question! To get an idea for how permanent laser hair removal is you need to comprehend how hairs grow and how laser hair removal works. Let's examine both of these subjects.

How Hairs Grow

Hairs grow from structures called follicles under your skin. The root grows in the follicle, and the part of the hair that shows above your skin is called the "shaft". Your body hair grows in a cyclic way. At any one point, the hairs in some of your follicles will be actively growing; other follicles will be dormant, and yet others will be in the process of shedding.

How Does Laser Hair Removal Work?

Hair reduction or even permanent removal is now possible for most skin types. Laser therapy works by targeting follicles under your skin. It is possible for the laser rays to hone in on your hair roots because of the melanin these cells contain, which makes them darker than the surrounding tissues.

However, this does mean that the success rate of laser hair removal treatment is affected by the difference in color between your roots and your skin. In other words, it works most effectively on people with very pale skin and very dark hairs - where there is a strong difference between the darkness of your follicles and the light color of your surrounding skin tissues.

Even in ideal circumstances, however, the rays do not kill off all of your hairs. Why is this? Due to the fact that the beam can only target actively growing hairs. As we saw earlier, only a certain proportion of your body hairs in any one area will be actively growing. This is the reason why laser treatment sessions are normally spaced 4 - 6 weeks apart - so that different follicles will be active at your next session, and can be effectively "zapped".

Conclusion

Usually, permanent laser hair removal can provide a enduring solution by "killing" a significant proportion of your follicles or roots under your skin. The therapy will not result in a 100% hairlessness but should provide relief by halting the majority of the growth; the remaining regrowth should be visibly thinner, paler and weaker.

Permanent laser hair removal is a truly viable solution for unwanted body or facial hairs.

Ingrid Preube
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