Red Light for Hyperpigmentation: Pros, Cons, Advice

Hyperpigmentation is one of the most common skin concerns around the world, yet treating it can be anything but straightforward. Whether it's dark spots from sun exposure, age-related pigmentation, or post-inflammatory hyperpigmentation (PIH) following breakouts, many people are seeking gentle and practical solutions that support skin renewal and overall skin health.

Red light for hyperpigmentation is gaining attention as a non-invasive option. Using targeted wavelengths of near-infrared and red light may help support skin renewal and visibly even tone in some instances.

But how effective is it, and what should you know before trying it?

In this guide, we explore the science, pros and cons, and how to incorporate targeted light exposure into your skincare routine safely.

What Is Hyperpigmentation?

Hyperpigmentation [1] refers to areas of the skin that appear darker than the surrounding tissue due to the accumulation of melanin [2], which can occur for a variety of reasons, including [3]:

• Sun exposure (UV light exposure)
• Hormonal changes, such as pregnancy or birth control use
• Inflammation or trauma, like acne or cuts (often leading to post-inflammatory hyperpigmentation or PIH)
• Aging, which can result in liver spots or age spots
• Certain medications, such as antibiotics

Melasma is a common type of hyperpigmentation that typically affects women, often appearing as patchy, grey-brown discoloration on the cheeks, forehead, upper lip, or other sun-exposed areas [4]. It’s notoriously difficult to treat and can be triggered or worsened by exposure to heat and light, making treatment options even more complex [5].

How Light-Based Treatments Work on Skin

Certain wavelengths of light, particularly those in the red (around 630 nm to 660 nm) and near-infrared (around 850 nm) spectrum, are known to interact with the skin in a gentle yet meaningful way [6].

When exposed to these wavelengths, the skin absorbs the light and delivers it to mitochondria, the energy-producing structures inside your cells [7]. This process may encourage:

• Increased production of adenosine triphosphate (ATP) [7], which supports natural skin repair and regeneration
• Enhanced collagen synthesis [8], helping to maintain firmness and elasticity
• Reduced inflammation [9], which plays a role in calming irritated or uneven skin

Unlike UV light [10], red and near-infrared wavelengths are gentler on the skin’s surface, making them a non-invasive option. These wavelengths can be delivered via LED light devices and can be incorporated into regular wellness routines at home or in professional settings.

That said, light-based treatments aren’t always suitable for every skin condition. Your skin may react in various ways depending on your skin type and any conditions you may have.

For example, in cases such as vitiligo, these wavelengths may increase pigmentation by stimulating pigment-producing cells to grow, or they may also reduce depigmentation by calming the immune response [9].

As always, it’s best to consult a healthcare professional before starting any new routine or remedy.

Can Red and Near-Infrared Light Help with Hyperpigmentation?

The short answer: It depends.

What the Research Shows

Some studies show that specific light wavelengths, including red light and near-infrared, may help:

• Improve skin tone and texture [6]
• Reduce post-inflammatory hyperpigmentation (PIH)
• Support healing of sun-damaged skin
• Encourage balanced melanin production

These wavelengths may also help regulate oxidative stress and inflammation in the skin, which can be helpful for pigmentation triggered by breakouts, injuries, or UV exposure.

However, there’s an important caveat, especially for individuals with melasma.

Potential Drawbacks of Red Light for Hyperpigmentation

While light-based treatments can support skin wellness, they aren’t universally beneficial for all forms of hyperpigmentation.

Near Infrared Light and Melasma

Some research suggests that near-infrared light (NIR), typically above 800nm, may stimulate melanocytes (the cells that produce pigment), potentially exacerbating melasma in certain individuals.

This means that while red light (around 660nm) may be helpful, the near-infrared component included in many LED light therapy devices could worsen symptoms for those prone to melasma.

For more control over your light session, look for a device that allows you to turn the NIR off.

Light Exposure and Vitiligo

In pigmentary disorders such as vitiligo, exposure to red and near-infrared light may inhibit repigmentation or even exacerbate depigmentation by affecting immune activity.

Individual Reactions Can Vary

Your skin’s response to light therapy may depend on several factors:

• Skin tone
• Genetic predisposition
• Hormonal factors
• Underlying skin conditions

Always consult a qualified healthcare professional before starting any light-based treatment, especially if you have melasma, vitiligo, or other pigmentary disorders.

Pros: Why Some People Use Light-Based Therapy for Dark Spots

When used thoughtfully and with the right device, red and near-infrared light exposure can offer several benefits:

• Non-invasive and safe for most skin types
• No downtime or damage to the skin barrier
• May support PIH reduction after breakouts or irritation
• Encourages a more even-looking skin tone over time
• Can be used in combination with skincare ingredients like vitamin C or niacinamide

Many people also report that their skin feels healthier, more resilient, and better hydrated with consistent use.

Cons: What to Consider Before Starting Treatment

• Melasma caution: Near-infrared light could make symptoms worse in sensitive individuals
• Slow results: Changes in pigmentation may take weeks or months
• Not all devices are equal: Light wavelength, output, and coverage matter
• Consistency is key: Benefits come with regular, ongoing use
• It’s not a cure-all: May not fully eliminate deeper pigmentation concerns like melasma or long-standing age spots

How to Use Red Light for Hyperpigmentation Safely

1. Start with the Right Device

Choose a light therapy device with clinically studied wavelengths, ideally around 660nm for red light, with optional, low-to-moderate levels of near-infrared. Look for tools that have been safety tested and designed for at-home use.

BON CHARGE™ red light devices are engineered to deliver effective light wavelengths safely and without unnecessary exposure. And best of all, our devices allow you to turn off the NIR component, giving you full flexibility and peace of mind.

2. Stick to a Routine

For best results:

• Use 3–5 times per week
• Apply to clean, dry skin
• Aim for 10–20 minutes per session
• Monitor your skin and adjust frequency if irritation occurs
• Check your skin’s response and adjust frequency if needed

3. Support with Smart Skincare

To optimise results, combine your light sessions with:

• Vitamin C or niacinamide serums to help brighten and protect the skin
• Broad-spectrum SPF 30+ daily, especially if you’re prone to sun-induced pigmentation
• Avoiding heat-heavy treatments if you have melasma

BON CHARGE Red Light Devices: A Smarter Way to Treat Your Skin

At BON CHARGE™, we design our light-based wellness tools with skin safety and science in mind. Our red light therapy devices feature:

• Clinically relevant wavelengths (660nm red and 850nm NIR)
• Safe, comfortable at-home use
• No UV light exposure or skin barrier disruption

Whether you’re targeting post-inflammatory hyperpigmentation, age spots, or simply supporting skin tone and texture, BON CHARGE™ offers a smart, effective way to care for your skin, without the guesswork.

Is Light Therapy Right for Your Hyperpigmentation?

Controlled exposure to red and near-infrared light may be a helpful, non-invasive approach for managing certain types of hyperpigmentation, particularly post-inflammatory hyperpigmentation (PIH) and mild sun spots.

But it's not one-size-fits-all.

If you have melasma or if your pigmentation is triggered by light or heat exposure, consult a dermatologist before beginning treatment. Always listen to your skin and track your results.

The safest route is to consult a dermatologist or licensed practitioner to assess what’s best for your skin.

With the right approach and the right tools, light-based treatments may become a valuable part of your skin health routine.

Disclaimer: The content in this article is for informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult with a qualified healthcare provider regarding any skin condition or treatment option.

References

1. PA-C, J. F., MMSc. Demystifying hyperpigmentation: Causes, types, and effective treatments. Harvard Health https://www.health.harvard.edu/diseases-and-conditions/demystifying-hyperpigmentation-causes-types-and-effective-treatments (2024).
2. Ebanks, J. P., Wickett, R. R. & Boissy, R. E. Mechanisms Regulating Skin Pigmentation: The Rise and Fall of Complexion Coloration. Int. J. Mol. Sci. 10, 4066–4087 (2009).
3. Thawabteh, A. M., Jibreen, A., Karaman, D., Thawabteh, A. & Karaman, R. Skin Pigmentation Types, Causes and Treatment—A Review. Molecules 28, 4839 (2023).
4. Sarma, N. et al. Evidence-based Review, Grade of Recommendation, and Suggested Treatment Recommendations for Melasma. Indian Dermatol. Online J. 8, 406–442 (2017).
5. Sheth, V. M. & Pandya, A. G. Melasma: A comprehensive update: Part II. J. Am. Acad. Dermatol. 65, 699–714 (2011).
6. Greaves, A. J. The effects of narrowbands of visible light upon some skin disorders: a review. Int. J. Cosmet. Sci. 38, 325–345 (2016).
7. Tafur, J. & Mills, P. J. Low-intensity light therapy: exploring the role of redox mechanisms. Photomed. Laser Surg. 26, 323–328 (2008).
8. Wunsch, A. & Matuschka, K. A controlled trial to determine the efficacy of red and near-infrared light treatment in patient satisfaction, reduction of fine lines, wrinkles, skin roughness, and intradermal collagen density increase. Photomed. Laser Surg. 32, 93–100 (2014).
9. Avci, P. et al. Low-level laser (light) therapy (LLLT) in skin: stimulating, healing, restoring. Semin. Cutan. Med. Surg. 32, 41–52 (2013).
10. Duteil, L. et al. Differences in visible light-induced pigmentation according to wavelengths: a clinical and histological study in comparison with UVB exposure. Pigment Cell Melanoma Res. 27, 822–826 (2014).