Red Light Therapy for Eczema and Psoriasis: What the Research Really Shows

If you live with eczema or psoriasis, you already know the frustrating cycle: a flare arrives, you reach for the creams, the skin calms down for a while — and then the cycle starts again. So when people hear that red light therapy may help calm inflamed, irritated skin, the interest is understandable. But separating real science from wellness hype matters more with chronic skin conditions than almost anywhere else.

This guide walks through what researchers actually know about red light therapy for eczema and psoriasis in 2026 — which studies exist, what they found, where the evidence is still thin, and how to think about using an at-home device safely alongside (never instead of) the care plan you've built with your dermatologist.

First, a Quick Refresher: What Eczema and Psoriasis Have in Common

Eczema (atopic dermatitis) and psoriasis are different conditions with different underlying biology. Eczema involves a compromised skin barrier and an overactive immune response that leaves skin dry, itchy, and inflamed. Psoriasis is an autoimmune condition in which skin cells multiply far faster than normal, building up into raised, scaly plaques.

What they share is chronic inflammation — and that overlap is exactly why light-based treatments have been part of dermatology for decades. Phototherapy is a well-established, dermatologist-administered treatment for both conditions. The key question is whether red light specifically — the kind delivered by at-home LED devices — offers some of those benefits without the drawbacks of ultraviolet exposure.

How Red Light Therapy Works on Inflamed Skin

Red light therapy, also called photobiomodulation, delivers specific wavelengths of visible red light (typically around 630–660nm) and near-infrared light (typically 800–1,100nm) into the skin. Unlike the UV light used in traditional phototherapy, these wavelengths don't damage DNA and don't tan or burn the skin.

Instead, research suggests the light is absorbed by cytochrome c oxidase, an enzyme inside your cells' mitochondria. That absorption appears to nudge cells toward producing more ATP — cellular energy — while also modulating inflammatory signaling. For inflammatory skin conditions, three of red light's studied effects are especially relevant:

1. Calming inflammatory signaling

Multiple studies have observed reductions in pro-inflammatory cytokines after photobiomodulation. Since both eczema and psoriasis are driven by inflammatory cascades, this is the central mechanism researchers are exploring.

2. Supporting the skin barrier

Red light has been shown to support fibroblast activity and collagen production — the repair machinery of the skin. For eczema-prone skin, where a weakened barrier lets moisture out and irritants in, barrier support is a meaningful target.

3. Slowing excess skin cell turnover

This one is specific to psoriasis. A 2025 study published in Scientific Reports found that LED red light attenuated epidermal thickening and slowed the runaway keratinocyte proliferation that creates psoriatic plaques — in laboratory psoriasis models. It's preclinical work, but it points to a plausible mechanism beyond general inflammation control.

What the Research Shows for Psoriasis

The most frequently cited human study is a 2010 pilot by dermatologist Dr. Glynis Ablon, published in Photomedicine and Laser Surgery. Patients with recalcitrant psoriasis — plaques that had resisted conventional treatments — received LED sessions combining 830nm near-infrared and 633nm red light twice weekly for four to five weeks.

The results were striking for such a stubborn patient group: clearance rates of plaques ranged from 60% to 100%, patient satisfaction was universally high, and no significant side effects were reported. The honest caveat: this was a small preliminary study without a placebo control group, and the author herself called for larger randomized trials. More than a decade later, those large trials are still limited — which is why dermatologists describe red light for psoriasis as promising rather than proven.

Reviews in the Journal of Clinical and Aesthetic Dermatology have echoed this framing: LED phototherapy shows a consistently strong safety profile and encouraging results across inflammatory skin conditions, but the evidence base remains built on small studies.

What the Research Shows for Eczema

The eczema evidence is earlier-stage than the psoriasis data. Most established phototherapy research for atopic dermatitis involves narrowband UVB — a clinical treatment that works through different mechanisms than red light and carries UV-related risks that require medical supervision.

For red light specifically, small studies and case series have reported reduced itch, less visible irritation, and improvement in eczema severity scores, and researchers point to red light's documented anti-inflammatory and barrier-supporting effects as the likely explanation. A 2021 review of phototherapy for atopic eczema noted that while light-based treatment clearly helps many patients, head-to-head data on newer modalities — including LED red light — is still sparse.

In plain terms: red light therapy for eczema is biologically plausible, appears low-risk, and has encouraging early signals, but it does not yet have the deep clinical evidence base that established eczema treatments have. Anyone with moderate to severe eczema should treat it as a possible complement to medical care, not an alternative.

Red Light vs. Traditional Phototherapy: An Important Distinction

It's easy to conflate the two, and worth being precise:

Clinical UV phototherapy

Narrowband UVB, administered in a dermatologist's office, is a gold-standard treatment for widespread eczema and psoriasis. It works partly by suppressing overactive immune cells in the skin. Because UV light carries cumulative risks, treatment is dosed and monitored by professionals.

At-home red light therapy

Red and near-infrared LEDs emit no UV. They won't burn, tan, or add to your lifetime UV exposure, which is why well-made devices are cleared for home use. The tradeoff is a gentler mechanism: red light supports and calms the skin rather than suppressing the immune system. If your dermatologist has recommended UV phototherapy, red light is not a substitute for it — though many patients use both, with their doctor's knowledge.

For a deeper look at overall device safety, see our guide to whether red light therapy is safe for home use.

Using Red Light Therapy at Home With Eczema or Psoriasis

If you and your dermatologist decide red light is worth trying, a few practical principles improve your odds of a good experience:

Choose clinically relevant wavelengths

The psoriasis research that exists used red light around 633nm combined with near-infrared at 830nm — so look for a device that delivers both a red wavelength in the 630–660nm range and a near-infrared component. The Luxen Veil Laser Mask pairs 660nm red light with near-infrared wavelengths, including deep-reaching 1064nm, across 164 medical-grade laser diodes — the same wavelength families used in the studies above.

Be consistent, not aggressive

Study protocols typically involved short sessions several times per week over four to eight weeks. More is not better — photobiomodulation follows a dose-response curve where excessive exposure can blunt results. Ten to twenty minutes, three to five times weekly, mirrors most research protocols. Our realistic red light therapy schedule breaks this down in detail.

Start gently during flares

Inflamed skin is reactive skin. Introduce red light on calmer days first, watch how your skin responds for 24 hours, and skip sessions over broken, weeping, or infected skin entirely. Patch-testing a small area is never a bad idea with either condition.

Keep your existing routine

Red light works alongside emollients, prescription topicals, and systemic treatments — it isn't a reason to stop any of them. If you're managing facial redness as well, our guide to red light therapy for rosacea covers how light therapy behaves on sensitive, reactive facial skin.

When to See a Dermatologist Instead

Red light therapy is a supportive tool, not a treatment plan. See a professional promptly if your eczema or psoriasis is spreading or worsening, if plaques crack or bleed, if itch is disrupting sleep, if you notice signs of skin infection, or if joint pain accompanies psoriasis — that can signal psoriatic arthritis, which needs medical management. No home device addresses the systemic side of these conditions.

Frequently Asked Questions

Can red light therapy make eczema or psoriasis worse?

Reported side effects in studies are rare and mild — occasional temporary redness or warmth. That said, any stimulus can irritate skin mid-flare. Introduce sessions gradually, and stop if your skin consistently feels worse afterward.

How long does red light therapy take to work on psoriasis?

In the Ablon pilot study, patients received treatment for four to five weeks before results were assessed. Most photobiomodulation research suggests giving any protocol at least four to eight consistent weeks before judging it.

Is red light therapy the same as the phototherapy my dermatologist offers?

No. Clinical phototherapy for eczema and psoriasis typically uses narrowband UVB — ultraviolet light that suppresses immune activity and requires medical supervision. Red light LEDs contain no UV and work through gentler, mitochondria-mediated mechanisms.

Can I use red light therapy on my face if I have eczema there?

Facial skin responds well to red light in studies of other inflammatory conditions like rosacea and acne, and LED masks are designed for facial use. Avoid active weeping or infected patches, keep sessions short at first, and clear it with your dermatologist if you use prescription facial topicals.

Does insurance cover red light therapy for skin conditions?

Generally no — at-home LED devices are considered wellness purchases. Clinical UV phototherapy, by contrast, is often covered when prescribed.

The Bottom Line

The research on red light therapy for eczema and psoriasis is encouraging — reduced inflammation, meaningful plaque improvement in early psoriasis trials, and an excellent safety record — but it is still early-stage, built on small studies rather than large randomized trials. That makes red light a sensible, low-risk complement to a dermatologist-led plan for many people, and a poor substitute for one.

If you're ready to add clinically informed light therapy to your routine, the Luxen Veil Laser Mask delivers the red and near-infrared wavelengths studied in dermatology research in a wireless, FDA-cleared design you can use in ten quiet minutes a day — calm skin, calmer ritual.

This article is for informational purposes only and is not medical advice. Always consult your dermatologist or healthcare provider before starting any new treatment for eczema, psoriasis, or another skin condition.