Skin Pigmentation and LED Masks: Does Green and Red Light Even Out Skin Tone?
According to studies, green and red LED light helps even out skin tone and reduce pigmentation spots. How to use an LED mask for pigmentation and what the science says.
Skin Pigmentation and LED Masks: Does Green and Red Light Even Out Skin Tone?
Published photobiomodulation studies suggest that green light (520 nm) and red light (630 nm) may help reduce the visible appearance of pigmentation spots and support a more even skin tone by influencing melanin production and calming the inflammation that often accompanies pigmentation. The LumenLuxe LED mask combines both of these modes in a home treatment, but it is not a treatment for pigmentation and does not replace dermatological care — it is a supportive part of a skincare routine.
What is skin pigmentation and why does it happen
Pigmentation is a general term for areas of skin that contain more melanin than the surrounding tissue — darker spots, uneven tone, sun marks, or marks left behind after a blemish has healed. It is most often triggered by UV exposure, hormonal changes, inflammation from irritated skin, or the natural ageing of the skin. Skin produces melanin as a form of protection, but uneven production creates a visible contrast against the rest of the face.
For deeper or hormonally driven pigmentation (such as melasma), it is worth consulting a dermatologist first — home light therapy can be a supplementary step, not the first line of care.
How light affects melanin production — what the studies say
Photobiomodulation (low-level light therapy) acts on skin cells without heat and without a UV component. Research on pigmentation focuses mainly on how green and red light affect melanocytes — the cells that produce melanin — and the enzyme tyrosinase, which is key to its production. Three published papers commonly referenced in this area:
| Study | Wavelength | Finding |
|---|---|---|
| Lee S.Y. et al., 2021, International Journal of Molecular Sciences (PMC8003787) | 525–530 nm | In a cell model of keratinocytes and melanocytes, the light suppressed pro-inflammatory cytokines triggered by UV exposure and reduced the activity of genes linked to melanin production. |
| Topal I.O. et al., 2023, Photodermatology, Photoimmunology & Photomedicine (PMID 38018017) | 630 nm | A systematic review of 9 clinical studies linked 630 nm light with modulation of tyrosinase and a reduction in melanin at doses of 1–20 J/cm² — a range the authors describe as safe for home use. |
| Jagdeo J., Austin E., Mamalis A. et al., 2023 (PMID 37418018) | 633 + 830 + 1072 nm | Users of a home LED mask reported visible improvement in fine lines, texture, and facial pigmentation after 6 weeks of regular use. |
These studies used different devices and, in some cases, a different wavelength than the LumenLuxe LED mask uses exactly — so this is not a clinically proven effect of our product, but published scientific literature on the principle that light therapy is based on. For more on how the different light colours differ, see our article on red vs. blue LED light.
Green vs. red light for pigmentation — what's the difference
| Mode | Wavelength | How it works |
|---|---|---|
| Green | 520 nm | Targets evening out skin tone, pigmentation spots, oil glands, and mild puffiness. |
| Red | 630 nm | Primarily targets collagen, firmness, and wrinkles; according to the studies above, it also modulates melanin production. |
| White (combined) | 630 + 520 + 460 nm | Combines all three wavelengths at once — more comprehensive, but less targeted care. |
For uneven skin tone and pigmentation spots, LumenLuxe users most often reach for the green mode, or the white mode if they want to address pigmentation and wrinkles at the same time. The LumenLuxe LED mask has both modes in a single device with 210 LEDs and 7 light modes.
Post-acne marks vs. sun-induced pigmentation — how they differ
Not every dark spot on the skin has the same cause, which is why the routine around it differs slightly. A quick overview:
| Type of pigmentation | Typical cause | What helps alongside LED therapy |
|---|---|---|
| Marks left after a healed blemish | Inflammation from irritated skin that left a darker mark | Consistency, gentle cleansing, avoiding picking at blemishes |
| Sun-induced pigmentation | Repeated UV exposure without adequate protection | Daily SPF, limiting direct midday sun exposure |
| Hormonal pigmentation (e.g. melasma) | Hormonal fluctuations, pregnancy, certain medications | Consultation with a dermatologist, SPF, patience — it responds more slowly |
In all three cases, LED light is only one piece of the puzzle. Without sun protection and patience, a visible difference takes longer to appear, no matter how good the mask is.
At-home LED care vs. in-salon treatment for pigmentation
Professional clinics offer more powerful devices for pigmentation and often combine light therapy with treatments such as chemical peels, which can bring a more dramatic single-session result. The cost per session is higher, though, and a series of visits is usually needed to see results. A home LED mask, on the other hand, allows for short, regular sessions several times a week without having to book appointments or travel — which makes sense as a supplementary habit alongside any in-salon treatments, given that improving skin tone is typically a long-term process. The two approaches can be combined — we cover the differences between home and professional care for wrinkles and firmness in more detail in our article LED mask vs. Botox and laser.
How to use an LED mask for uneven skin tone
Cleanse your skin before treatment, without make-up, serum, or sunscreen — a layer on the skin blocks light penetration. Put on the mask, select the green or white mode, and let it work for around 10 minutes. The recommended frequency is 3–5 times a week. After treatment, apply serum or cream — skin tends to absorb them better after light therapy. Most users notice the first changes in skin tone after a few weeks of consistent use, with fuller results associated with around 4 weeks — results are individual, though, and no one can guarantee them for an exact number of days.
During the day, it's worth keeping up with SPF when dealing with pigmentation — new pigmentation most often forms from repeated sun exposure, regardless of what other care the skin is getting. For more on prepping skin before an LED session and brightening it even without make-up, see our article Wake up your skin's natural glow without make-up.
What an LED mask can't do, and when to see a specialist
An LED mask does not remove or treat pigmentation — it is a cosmetic device, not a medical one. For deep, hormonal, or long-standing pigmentation, it's worth consulting a dermatologist who can assess the cause and recommend an appropriate approach. LED therapy can be a supportive part of that care, not a replacement for professional treatment.
Contraindications to always consider when using an LED mask: pregnancy, light-sensitive epilepsy, active skin infections or conditions, retinal diseases, use of photosensitising medications (such as isotretinoin or certain antibiotics), and use of light-sensitive cosmetic ingredients. We recommend using retinol and acids at a different time of day than your LED session. Before first use, test the mask on the skin of your hand for 10 minutes, and stop the treatment immediately if you experience any burning or unusual reaction.
Frequently Asked Questions
Can an LED mask remove pigmentation spots? No, an LED mask does not remove or treat pigmentation. Studies suggest that green and red light, used regularly, may help reduce its visibility and support a more even skin tone — but this is supportive care, not treatment.
Which LED mask mode is best for pigmentation? The green mode (520 nm) is used most often, as it's specifically designed to even out skin tone. If you also want to address wrinkles, the combined white mode is a good option.
How long does it take to see a change? With regular use 3–5 times a week, most users notice the first changes after a few weeks, with a fuller effect associated with around 4 weeks. Results vary by individual.
Is LED light safe for sensitive skin with pigmentation? Yes, an LED mask doesn't use UV radiation or heat, so it's suitable for sensitive skin too. That said, it's important to follow the contraindications and do a sensitivity test on the skin of your hand before first use.
Can I combine an LED mask with pigmentation serums, like vitamin C? Yes, it's best to apply serum after the LED session, once your skin can absorb it better. We recommend using retinol and acids at a different time of day.
Does an LED mask also help with dark post-acne marks? Several customers describe in their reviews that marks left by previous blemishes gradually faded with regular use. These are individual experiences, not a guaranteed result.
👉 See the LumenLuxe LED mask — 210 LEDs, 7 light colours including a green mode for pigmentation, and a 60-day money-back guarantee.
