Laser Treatments: Renewal Has a Price — and the Skin Pays It

A laser can coax your skin into renewing itself — and in many treatments, the way it does that is by injuring it. Deliberately, and in a controlled way.

You're promised smoother skin, fewer wrinkles, fewer spots, softened scars, and a younger, fresher look.

And some of the results really are impressive.

So what actually happens to your skin during treatment? How does your body repair the damage? And are repeat treatments over years always a good thing?

What exactly is a laser?

A laser is a device that emits light energy with defined characteristics, which can be directed at different targets within your skin.

Depending on the wavelength, the power, how long the exposure lasts, and the type of device, that energy can affect pigment, blood vessels, hair follicles, or the water in your tissues.

There's no such thing as one laser treatment that's right for every skin problem.

A device designed for hair removal works very differently from one designed to treat scars or resurface skin.

How can a laser encourage skin renewal?

In some treatments — especially lasers used for skin renewal — energy is used to create a controlled thermal injury in the tissue.

Your body responds to that injury with a healing process.

As you recover, the organization of your collagen fibers can change, and new collagen can be produced.

That process may improve skin texture, reduce fine lines, and soften some scars.

But not every laser treatment works by injuring the skin's surface, and not every treatment stimulates collagen to the same degree.

What's the difference between the types of laser?

Ablative Laser

This treatment removes part of the outer layers of your skin and creates a controlled injury in the tissue.

Familiar examples are the CO2 laser and the Er:YAG laser.

Treatments like these can be effective for improving wrinkles, scars, and skin texture, but they usually require a more significant recovery period.

Non-Ablative Laser

These treatments heat certain areas of the tissue without removing the skin's surface in the same way.

Recovery is usually easier, but you may need a series of treatments to get the improvement you want.

Fractional Laser

In a fractional treatment, the energy is delivered to tiny, separate spots in your skin, with untreated tissue left in between.

That design lets the neighboring tissue take part in the healing process.

A fractional laser can be ablative or non-ablative, so don't confuse the terms.

What are the benefits of laser treatments?

1. Improvement in skin texture

Certain treatments can reduce roughness, even out the surface of your skin, and soften fine lines.

2. Treatment of acne scars

Fractional laser may improve the appearance of certain acne scars, though it isn't always possible to eliminate them completely.

3. Treatment of pigmentation spots

The right devices can treat some sun spots and pigmentation.

Some types of pigmentation, such as melasma, can actually get worse after the wrong treatment, though.

4. Treatment of blood vessels and redness

Some laser devices target the hemoglobin in your blood vessels and can reduce the appearance of prominent capillaries and certain kinds of redness.

5. Encouraging changes in collagen

In some skin-renewal treatments, you can get improvement in texture and a degree of firming through repair and reorganization of the collagen.

But even a successful result doesn't stop the natural aging process.

What are the downsides and risks?

One thing should be clear here: a laser is much more than a beauty treatment.

It's energy delivered to living tissue — so if it's used inappropriately, it can cause damage.

1. Burns and scars

When the treatment's power isn't matched to your skin type or the area being treated, burns can happen.

In some cases, the injury can lead to scarring or a permanent change in your skin's texture.

2. Post-inflammatory pigmentation

One possible complication is dark spots that appear as part of the inflammatory response to treatment.

It's called post-inflammatory hyperpigmentation.

The risk may be higher if you have a darker skin tone, if your skin is tanned, and with certain treatments.

Sometimes lighter patches can appear, too, as a result of a loss of pigment.

3. Prolonged redness and sensitivity

After certain skin-renewal treatments, you can have redness, swelling, burning, and sensitivity.

In some cases the redness lasts for weeks or even longer, depending on how deep the treatment went and how you personally respond.

4. Infections

When your skin's protective layer is damaged, your risk of infection during recovery goes up.

Certain treatments can also trigger a herpes outbreak in people who are prone to them.

Tell your doctor about any history of cold sores before a treatment on your face.

5. Damage to the eyes

Laser radiation can damage your eyes if the right protective measures aren't used.

Treatments around the eyes call for special caution, and for protective equipment matched to the type of device.

Does a stronger treatment always mean a better result?

Not necessarily.

There's a tendency to think that the redder your skin is, the more it peels, or the longer the recovery, the more effective the treatment must be.

But that's not the right way to measure success.

A treatment that's too aggressive can cause damage without giving you any significant advantage.

The goal is to choose a treatment strength that fits the problem, your skin type, and the result you're after.

Is laser right for every skin tone?

Not every type of laser suits every skin tone equally well.

Darker skin has more melanin, so certain devices can affect your skin's natural pigment as well and cause burns or color changes.

That doesn't mean people with dark skin can't have laser treatments.

It means the device, the settings, and the professional have to be chosen for your skin tone and the type of problem you're treating.

What about repeat laser treatments over years?

This, to me, is an important question.

We know certain laser treatments can encourage repair processes in the tissue and improve how your skin looks.

But that doesn't mean you should keep creating controlled injury in your skin without limit.

The effect of repeat treatments depends on the type of laser, the treatment's strength, the spacing between treatments, and how well your skin heals.

There's no proof that every series of laser treatments causes skin thinning or cumulative damage. On the other hand, a treatment that's too aggressive, or repeated before you've recovered enough, can raise your risk of complications.

So in my view, every treatment should have a clear goal — treatments shouldn't be done just because the time for the next one has rolled around.

Does laser really rejuvenate your skin?

It can improve certain signs of aging, but it doesn't return your skin to its biological state when you were young.

It doesn't stop hormonal changes, it doesn't prevent volume loss in your face, and it doesn't undo all the damage caused by sun exposure.

There's a difference between improving how you look on the outside and stopping the aging process.

What should you check before a treatment?

Before you choose a laser treatment, find out which device will be used, what the goal of the treatment is, and what the risks are for your skin type.

It's worth asking how long recovery is expected to take, what your risk of pigmentation is, what results you can realistically expect, and how many treatments you really need.

Also let your practitioner know about your medications, any tendency to scarring, herpes, recent tanning, and previous treatments.

Especially with aggressive treatments, it's worth choosing a dermatologist or medical professional with the right training and proven experience with the device and the skin type being treated.

What matters after a laser treatment?

Recovery is part of the treatment itself.

It's important to follow your practitioner's instructions, avoid unprotected sun exposure, and not use acids, peels, or irritating products before your skin has recovered and you're told it's okay.

For treatments that damage the outer layer of your skin, careful wound care and keeping the area clean are essential.

Don't peel off scabs or try to speed up recovery.

If you develop worsening pain, pus-like discharge, fever, or an unusual change in your skin color, get a medical examination.

I think laser treatments are a fascinating example of medicine's ability to use your body's natural healing processes to improve how your skin looks.

But not every treatment that encourages renewal is a treatment you necessarily need.

Sometimes we're so focused on how to get rid of a wrinkle or a spot that we forget to ask what it asks of our skin to get there.

I'm not against laser treatments. I'm in favor of understanding them.

I believe proper skincare starts with preserving the skin you have: sun protection, good nutrition, sleep, moisture, and care that suits its condition.

And if you do choose a more advanced treatment, it should be because you really need it, with realistic expectations, and in professional hands.

In the end, your skin is a living, functioning, self-renewing organ — not just the envelope you see in the mirror. The real goal is to preserve its health over the years, alongside its appearance.

Nurit Rozenblat

With love,
Nurit Rozenblat
OrOrgani

Disclaimer: The articles, recipes, and other content published on OrOrgani are provided for informational and educational purposes only and are not a substitute for professional medical advice, diagnosis, or treatment. Some recipes are based on traditional practices whose safety and effectiveness may not be scientifically established. Readers should consider individual sensitivities and health conditions and consult a qualified healthcare professional when appropriate. OrOrgani makes no guarantees regarding results. Nothing in this disclaimer limits liability that cannot lawfully be excluded.

Read the full Medical & Wellness Disclaimer →

© 2026 Nurit Rozenblat. All rights reserved. No part of this article may be reproduced or distributed without the author's prior written permission.