How the Excel V Laser Treats Red Veins and Brown Spots With One Device: Sessions and Aftercare

You've probably caught it in the mirror: cheeks that look flushed for no real reason, or a scatter of faint brown dots across the cheekbones. The catch is that these two things come from completely different places. The redness is tiny blood vessels showing through the skin, while the brown spots are clumps of melanin that have built up over time. That mismatch used to mean two separate visits, one for the vessels and one for the pigment.

The Excel V laser was built to handle both, one after the other, in a single device. Understanding how one machine can pick out two such different targets starts with a quick look at how laser light actually works.

What does it mean that light can "pick out" a color?

Laser light fires at one specific wavelength, essentially one color and length of light wave. Different substances in your skin absorb different wavelengths. Hemoglobin in blood soaks up shorter wavelengths, closer to green than red, while melanin responds across a much wider, longer range.

That difference is the whole trick. Adjust the wavelength, and you can tell the laser "target vessels only" on one pass and "target pigment only" on the next. It works a bit like tuning a radio: change the frequency, and you pick up a different station.

Why does it run on two wavelengths?

Excel V typically comes equipped with two wavelengths, 532 nanometers and 1064 nanometers, working as a pair. The 532nm beam is short enough to be absorbed strongly by hemoglobin, which makes it the go-to setting for broken capillaries, redness, and reddish scarring.

The 1064nm beam runs longer, so it reaches deeper into the skin while still being absorbed by melanin. That makes it useful for pigmentation and melasma sitting near the border between the epidermis and dermis. Longer wavelengths travel deeper but also scatter more, so the settings and delivery method get adjusted based on how deep the target actually sits.

Put simply, the short wavelength gets absorbed hard and fast near the surface, while the long one spreads its absorption more gently as it travels deeper. So a superficial red vein calls for the short wavelength, and pigment or thicker vessels sitting closer to the dermis call for the long one. It comes down to matching the tool to how deep the problem actually sits.

Why do vessels and pigment even show up in the first place?

Once you understand the mechanism, the everyday triggers make a lot more sense. Broken capillaries mostly come from small vessels dilating and becoming visible near the surface. Repeated exposure to things that widen blood vessels, like stepping from cold air into a hot room, spicy food, alcohol, or the sauna, gradually wears down the elasticity of the vessel walls. Once a vessel stretches out, it usually doesn't shrink back on its own. That's why capillaries tend to become more noticeable with age, and even more so if you're prone to flushing to begin with.

Brown spots come from a different mechanism entirely. UV exposure triggers your skin to produce more melanin as a protective response, which is a completely normal defense mechanism on its own. The trouble starts when melanocytes in a particular area get overstimulated and pile up pigment in one spot. That's also why spots tend to cluster on the cheekbones and forehead, the areas that catch the most sun over the years. And if your skin is genetically prone to pigmentation, the same amount of sun exposure will produce spots more readily than it would on someone else. So the two problems start from entirely different causes, which is exactly why the laser approaches them so differently.

How does heat actually clear out vessels and pigment?

Once the laser is absorbed by its target, it generates a burst of heat right at that spot. For vessels, that heat damages the cells lining the vessel wall, causing it to gradually shrink and close off. From there, the body treats the vessel as unneeded tissue and clears it away naturally over time.

Pigment works through a different mechanism. A clump of melanin hit with a sudden burst of heat and impact shatters into tiny particles. Those fragments then get mopped up by your immune cells, like a cleanup crew, or pushed up toward the surface and shed along with dead skin cells. Vessels get shut down and reabsorbed, while pigment gets broken apart and cleared out. Two different targets, two different exit strategies.

What's the advantage of treating both with one device?

Vascular redness and pigmented spots often show up on the same face at the same time, which makes sense once you know the cause: extended sun exposure widens vessels and ramps up melanin production at the same time. With a single-wavelength device, treating the second problem means booking a separate appointment on a different machine and building a whole new treatment plan around it.

A device that can switch wavelengths lets a provider move between them within the same visit, applying different wavelengths to different areas in sequence. That simplifies the logistics of a treatment plan, but it's worth being clear about what it doesn't mean: the two problems aren't solved in a single pass over the same spot. In practice, the provider treats different areas of the face with the wavelength suited to what's actually there, all within the same appointment.

How does the approach differ for redness compared to spots?

For redness, the common approach is broader coverage at relatively lower intensity, passed over the area 2 to 3 times to build up a gentle effect. Vessels vary a lot in thickness and depth, so a gradual, staged approach is generally considered safer than going in hard on the first pass.

Spots tend to have clearer edges, so treatment is usually more targeted, addressing each spot individually. Energy levels get adjusted based on how deep and how concentrated the pigment is, and whether it sits closer to the surface or further into the dermis changes the approach as well. Even with the same device, how the provider reads the lesion in front of them can shape the outcome.

How many sessions, and how much downtime?

• Redness tends to fade gradually as vessels shrink over time, so most people go through around 3 to 5 sessions spaced apart, rather than trying to clear everything in one go. Spreading treatment out over 3 to 5 sessions gives the body time to naturally process and clear the affected vessels.
• Spots vary depending on how concentrated the pigment is in each lesion. Lighter spots can fade in 1 to 2 sessions, but darker or deeper pigment often needs 3 to 5 sessions spaced 3 to 4 weeks apart. Going too aggressive in a single pass raises the risk of post-inflammatory hyperpigmentation, so a staged approach is generally recommended.
• Downtime tends to be short overall. Treated vessel areas may show temporary redness or light bruising, while pigmented areas can develop scabbing or flaking that lasts about 3 to 7 days. Diligent sun protection during this window matters a lot for keeping pigment from coming back.

What should you do before and after treatment?

Before treatment, it helps to get your skin into as calm and unirritated a state as possible. Starting 2 weeks before treatment, skip sun exposure and tanning, and pause exfoliating actives like retinol. Adding laser heat on top of already-irritated skin slows recovery and raises the odds of lingering pigmentation.

Right after treatment, some redness or mild swelling in the treated area is a normal response to the heat. This is also the window to be extra diligent with sunscreen, reapplying more often than usual, since freshly treated skin is especially prone to darkening or temporary pigment changes.

• If a scab forms, let it fall off on its own rather than picking at it. Forcing it off raises the risk of scarring or pigmentation.
• Hold off on hot saunas, intense workouts, and alcohol for 3 to 5 days after treatment, since re-dilating the vessels can make redness stick around longer than expected.
• Keep up with moisturizing more than usual. Maintaining good hydration while the skin barrier recovers also helps the next session deliver better results.

Is this treatment right for everyone?

How your skin responds depends a lot on skin type, specifically how much melanin it contains. Skin with more melanin carries a higher chance that normal surrounding tissue reacts alongside the target, which usually calls for more conservative settings. Recent sun exposure or certain medications can also mean the timing needs to be adjusted.

That's why a dermatologist typically examines the skin and confirms what's actually causing the lesion before treatment starts. Something that looks like redness could turn out to be an inflammatory condition, and a brown spot could have a different underlying cause than expected, so an accurate diagnosis needs to come first.

Melasma in particular can look a lot like ordinary brown spots on the surface, but it often comes from a different cause and behaves quite differently. When hormonal changes are involved, laser stimulation can sometimes make the pigment darker rather than lighter, which is why sorting out exactly what type of lesion you're dealing with matters so much for the outcome. Two spots that look identical can call for very different settings and treatment intervals, depending on the diagnosis behind them.

References

Korean Dermatological Association, Ministry of Food and Drug Safety (MFDS), American Academy of Dermatology (AAD), and U.S. Food and Drug Administration (FDA).