Why You Must Avoid The Sun Before & After Laser Hair Removal?

We advise you to protect the skin against sun exposure for at least 1 Month before and after laser hair removal treatment. And, of course, be sure to wear a hat and slather on an SPF of 30 or higher sunscreen if you absolutely have to go outside.

Dangers Of Sun Exposure Before Treatment

Increased melanin in the skin will compete for the laser energy intended for the hair follicle beneath the skin. The hair follicles won't receive enough laser energy to destroy them and it will make the laser less effective. The skin will get enough of lasers to be damaged. It is more susceptible to certain side effects including blistering or discoloration of the skin. Tanning can make the skin more sensitive. You can feel the more pain of laser therapy on your sunburnt skin. Sunlight also has a bleaching effect on hair and that lightening effect again reduces the effectiveness of the laser therapy.

Dangers Of Sun Exposure After Treatment

It is so important that will affect the laser results. The fact that the sun will most like aggravate the area that has been treat by laser is the reason the sun should be avoided. Even a small amount of sun exposure after treatment can cause severe burns and inflammation. So that it will prevent the heal and generate a layer of fresh new cells of the skin. The other reason to stay out of the sun is that laser hair reduction requires multiple consecutive treatments, and if your skin becomes more tan between the treatments, the same laser can not be used throughout the duration of the procedure even the smallest amount of color added to your skin, your provider may not even be able to perform your next treatment.

Why You Must Avoid The Sun Before & After Laser Hair Reduction?

In recent times, newer laser machines that can be used for tanned skin has been introduced. But while these machines can be good for someone who has a healthy tan, it does not mean that a person should deliberately expose themselves to the sun before or after a treatment. These lasers are more expensive and not wide spread yet. Even though the technology is ready, these machines are not as readily available at clinics and salons.

For Laser (IPL) At-home Device

But when doing laser hair removal at home, no one will emphasis this point. Though it will be written in the user guide, but most people skip it and underestimate this warning. When the skin gets dark, less light will reach the hair, and the treatment will be less effective. On top of this, when the skin is dark, the light will cause the skin tissue to heat instead of the hair. This will be felt by stronger zaps, more painful than they usually are.

One of the main hazards to watch out from, is exposing your skin to the sun rays after laser hair removal at home. The skin is vulnerable after it was bombarded with light energy. The melanin production may have been under stress due to the treatment.

Sun Exposure Diagrams Of Pigment


New Pigment Has Formed
This is typical after a first exposure, sunburn or significant skin darkening.
This picture illustrates the skin during the first week after an initial exposure.

The laser will be attracted to this pigment instead of the follicle, concentrating the energy to this layer. High risk of serious skin reaction.

Another Exposure Occurs 2 Weeks Later
Remains high risk as there are only 2 layers of pigment present to absorb the energy.
This picture illustrates the skin 2 weeks after initial exposure (upper line of dark pigment) and then another exposure.

Laser will be attracted to these layers of pigment instead of the hair follicle.

After Another Exposure,The Risk Is Still There, But Is Decreasing
There are now 3 layers of pigment present to absorb the energy.
This picture illustrates the skin 3 weeks after initial exposure and then 2 subsequent exposures. You can see the dark lines of pigment spreading throughout the skin.

Laser is still attracted to the skin pigment instead of the hair follicle.

After Repeated Exposures The Pigment Is More Evenly Dispersed Throughout The Skin
This picture illustrates skin that receives consistent sun exposure.
Consistent being at least once every 7-10 days.

The laser energy will now be focused on the hair follicle rather than the pigment in the skin.


The Skin With No Prolonged Sun Exposure And Sunscreen Is Used On A Daily Basis
This picture illustrates skin that is not tanned. No lines of darker pigment seen.

Laser energy will be focused on the hair follicle.

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