What facial laser does: what it treats and what it doesn't

Asking "what does facial laser do" is like asking what a knife does. It depends on which one, and on what for.

Laser isn't a procedure. It's a physical principle — light at a very specific wavelength, delivered in controlled pulses — used by dozens of different devices, each aiming at a different target inside the skin. A laser that erases a brown spot does nothing for a red vessel. One that treats vessels doesn't improve texture. And the one that genuinely improves texture charges recovery time in return.

Understanding this puts you ahead. Because the most common mistake isn't "I had laser and it didn't work" — it's I had the wrong laser for my problem, and it never could have worked.

What laser does to the skin

Every laser works by the same mechanism: the light is absorbed by a specific substance in the tissue, turns into heat, and the heat produces an effect. The absorbing substance is what defines the target.

• Melanin absorbs certain wavelengths. That's how pigmentation is treated and hair is removed — the pigment heats up and the structure carrying it is destroyed.
• Hemoglobin absorbs others. That's how spider veins and redness are treated — the vessel heats from the inside and the body reabsorbs it.
• Water absorbs others still. That's how texture, pores, scars and fine lines are treated — the water in the tissue heats up, the skin responds with repair, and new collagen organizes in its place.

That explains in one stroke why there's no such thing as "the laser". The target determines the device, and the target is your problem, not the clinic's catalog.

What laser treats on the face

What comes up most often in practice:

The rule behind the table: laser is excellent at color and surface. It's weak at volume and support. Sagging that needs contour, a fold that needs structure, a lower third that has dropped — none of that is a surface problem, and laser doesn't fix it. We say so at the consultation, even when the person came in asking for laser.

Ablative and non-ablative laser

This is the division that really matters, and it's what decides how much time you'll spend at home.

Ablative removes a layer of skin. The surface is vaporized and the body rebuilds it. It delivers more in a single session — texture, scars, fine lines — and sends the bill in recovery: days of red, weeping skin, with dressings and complete sun avoidance.

Non-ablative passes through the surface and heats underneath without removing it. The skin stays intact. Recovery takes hours to a few days, the result is gentler, and so it works in series — spaced sessions, cumulative gain.

There's also fractional, which is a delivery mode, not a third category: instead of treating the whole area, the beam is split into micro-columns that leave healthy skin between them. That speeds healing, because the intact surrounding tissue drives the repair. Both ablative and non-ablative lasers can be fractional.

There's no better version. There's the one that fits your skin, your problem and your calendar. Someone with two weeks off who wants to solve it in one go chooses differently from someone with a wedding on Saturday.

What your skin looks like after facial laser

It depends entirely on which laser you had.

With non-ablative, the typical picture is red, warm skin that looks sunburned, with some swelling in the first hours. It usually settles in one to three days. Some fine peeling may show up afterward.

With ablative, the process is bigger: intense redness, swelling, oozing in the first days, crusting and then peeling. The new skin comes in pink and stays pink for weeks, sometimes longer. That's not a complication — it's normal healing, and people who weren't warned about it panic on day three.

With either one, three things are non-negotiable: strict sunscreen use, constant moisturizing, and no acids, exfoliants or new procedures until the skin has closed. Sun on healing skin is the fastest route to the very pigmentation you went in to treat.

How long facial laser results last

Three different answers, because there are three kinds of effect.

• A treated spot clears and may not come back — as long as the cause doesn't continue. Unprotected sun, hormones, heat: if the trigger stays active, the pigment returns. Laser erases what exists; it doesn't stop what's coming.
• A closed vessel doesn't reopen. But the predisposition that created that vessel remains and can create others.
• Stimulated collagen is the most honest of the three: you gained new tissue, and that tissue ages along with you. The gain persists for a period of months, with periodic maintenance sustaining the effect.

No one can promise a number of months that holds for everyone — it depends on the laser, the depth, your skin and above all what you do with it afterward. Anyone promising an exact timeline is selling confidence, not a prediction.

How many sessions you need

The interval between sessions exists to let the skin finish repairing before the next stimulus, which is why it's usually weeks, not days.

The number varies with the goal: an isolated spot may respond quickly; texture and scars work in a longer series; hair removal has to follow the hair growth cycle, which always means multiple sessions and maintenance afterward. Any clinic that gives you an exact number before seeing your skin is guessing.

Can you have laser if you have rosacea

Yes, and in many cases it's exactly the right treatment — for the vascular component, the diffuse redness and the visible spider veins. Laser that targets hemoglobin is one of the few things that acts on that.

The detail matters: rosacea is reactive skin. The wrong laser or overly aggressive settings trigger a flare. Treatment during an active inflammatory flare should be postponed — first the inflammation is brought under control, then the vessels are treated.

Can you have laser if you have a thyroid condition

Thyroid disease, on its own, doesn't rule out facial laser. What changes is the context: an uncontrolled hormonal imbalance affects the skin, healing and the tendency to pigment, so it makes sense to treat with the condition stable and monitored.

It's worth naming what sits behind this question. It usually comes from someone who saw content confusing aesthetic laser with laser used in a very different kind of medical procedure. Aesthetic facial laser works on the skin, not on a gland or any internal structure. If you have a thyroid condition under treatment, mention it at the consultation — not as an obstacle, as information that goes into the plan.

Melasma: the case that calls for caution

It deserves its own section because this is where the most people get hurt.

Melasma responds to inflammatory stimulus by getting worse. Heat is an inflammatory stimulus. Laser produces heat. The math works itself out: aggressive laser on melasma can bring the pigment back darker and harder to treat than before.

There are laser approaches for melasma, done with conservative settings and as part of a protocol that includes other fronts. But melasma is never a case of "I'll get a laser and be done with it". It's a chronic condition, managed rather than cured — and anyone promising you a cure in a set number of sessions is selling you an expensive disappointment.

What makes up the cost of laser treatment

No numbers, but transparency about what weighs in: the type of device and its maintenance, the area treated, the number of sessions your case needs, the practitioner's time per session, and what comes with it — consultation, aftercare products, follow-up.

That's why comparing laser prices between clinics almost never compares the same thing. Different devices, different protocols, different session counts. The question worth asking is what's included and how many sessions the plan calls for, not what a single session costs.

Is it worth it

It's worth it when the problem is color or surface, when the chosen laser aims at your specific target, and when you accept the recovery time that laser demands.

It's not worth it when the real complaint is contour, volume or support, and someone pushed laser on you because that's what the clinic has. It's the difference between a plan that starts from your face and one that starts from the equipment on hand.

At RUV, laser comes after the whole-face analysis, not before. The complaint points to the symptom; the plan starts from the structure. Sometimes the answer is laser. Sometimes it's laser plus something else. Sometimes it's no laser at all, and saying so is part of the job.

Safety

Facial laser isn't an injectable procedure, so the vascular concern is of a different kind — but the logic of checking before acting is the same.

When the plan combines laser with an injectable procedure on the same face, Doppler ultrasound assessment is part of the process here: before, to understand the structure of that face, including filler from previous treatments; after, to confirm there's no vessel compression. Seeing what's under the skin changes the plan and the order in which things are done.

With laser specifically, safety means assessing skin type, history of pigmentation and scarring, current medications, recent and planned sun exposure, and choosing settings compatible with all of it. Tanned skin raises the risk of post-inflammatory hyperpigmentation. That's not fine print — it's what separates a result from a problem.

When we advise against it

• A recent tan or heavy sun exposure coming up. Skin with activated melanin absorbs energy where it shouldn't. Postponing is cheaper than correcting.
• Melasma, looking for a permanent fix. We treat it cautiously and within a protocol, never promising a cure.
• Rosacea in an active inflammatory flare. The inflammation gets controlled first.
• Active infection in the area — cold sores, an inflamed lesion, an open wound. Laser over an infection spreads the problem.
• Recent isotretinoin use. It affects healing, and the safe interval is a clinical decision made case by case.
• When the complaint is sagging or contour. Laser works on the surface. Forcing it delivers a lukewarm result and the feeling of money thrown away.
• When the expectation is a result with no recovery time at all. Every laser costs something. Getting aligned on that beforehand prevents disappointment afterward.
• Pregnancy and breastfeeding. An elective procedure waits.

Frequently asked questions

What does facial laser do, in one sentence?

It treats color and surface in the skin — spots, spider veins, texture, pores, scars, fine lines and hair. It doesn't do volume or support.

What does your skin look like after facial laser?

Red and sensitive, with intensity and duration that depend on the type. Non-ablative settles in days; ablative goes through crusting, peeling and weeks of pink skin before it normalizes.

How long do facial laser results last?

A treated spot may not come back if the cause is controlled. A closed vessel doesn't reopen. Collagen stimulation lasts months and needs maintenance, because the new tissue ages along with you.

How often should you get laser on your face?

There's no universal number. The interval respects the skin's repair time — weeks between sessions — and the count depends on the target. An isolated spot is one conversation; texture and scars are another; hair removal is another still.

Can you have laser if you have rosacea?

Yes, and vascular laser is one of the best tools for redness and spider veins. Outside an active flare, with conservative settings.

Can you have laser if you have a thyroid condition?

It's not a contraindication in itself. With the condition controlled and monitored, facial laser proceeds normally. Mention it at the consultation.

Does laser remove melasma?

It improves some cases, with a conservative protocol. It can also make it worse if the settings are aggressive. Melasma is a condition of ongoing management, not a cure in sessions.

What's the downside of laser?

Recovery, mainly. And the risk of post-inflammatory hyperpigmentation in darker or tanned skin, which is exactly the opposite of the result you want. That's why the choice of device and settings matters more than the equipment brand.

Can you get laser in the summer?

Yes, with disciplined sun protection and by avoiding periods of heavy exposure. But honestly, winter makes it easier to stick to the aftercare, and sticking to it is half the result.

Does laser replace toxin or filler?

No. They have different targets. Laser works on skin; toxin works on movement; filler works on structure. A good plan often combines them, and the order they're done in matters.