HOME > Red light therapy knowledge

Does red light therapy help dermatitis?

If you suffer from dermatitis, you know how frustrating and uncomfortable it can be. The itchy, inflamed skin can disrupt your daily life and impact your self-confidence. While there are certain medications and ointments that can provide some relief, many people are looking for natural, drug-free solutions to manage their symptoms. One promising option is red light therapy for dermatitis. But does it really work? In this article, We’ll explore the science behind red light therapy for dermatitis.

Does red light therapy help dermatitis?

Source: The picture comes from the Internet

What Is Dermatitis?

Dermatitis is a general term for skin inflammation and irritation. There are many different types of dermatitis, including:

  • Atopic dermatitis (eczema): Most common type, often starts in childhood. Symptoms include dry, itchy, red skin.
  • Contact dermatitis: Caused by contact with an irritating substance. Can occur acutely or become chronic.
  • Seborrheic dermatitis: Affects oily areas like the scalp, face, upper body. Causes red, flaky, itchy skin.
  • Nummular dermatitis: Characterized by coin-shaped lesions on arms, legs, torso. Very itchy.

While the exact cause isn’t fully understood, most dermatitis is linked to problems with the skin barrier. The outer layer of skin acts as a protective barrier, trapping moisture inside and keeping irritants and allergens out. When that barrier is compromised, moisture escapes and skin gets inflamed.

Things that disrupt the skin barrier and trigger dermatitis include:

  • Genetic mutations affecting skin proteins
  • Immune system dysfunction
  • Harsh soaps, detergents, and chemicals
  • Low humidity
  • Sweating and overheating
  • Stress and hormonal changes
  • Dry skin and lack of moisture
  • Allergies and sensitivities

Dermatitis ranges from mildly annoying to severely debilitating depending on its severity. Mild cases can usually be managed with over-the-counter creams and home remedies. More severe dermatitis requires prescription steroid creams or oral medications.

No matter where you fall on the spectrum, dermatitis can negatively impact your life. The constant itchiness makes it hard to focus and sleep. Cracked, inflamed skin is also prone to infection. Many people with dermatitis struggle with low self-esteem and social anxiety. Finding an effective, natural treatment option is a top priority for anyone battling this frustrating condition.

what is Red light therapy?

Red light therapy, also called photobiomodulation (PBM) or low-level laser therapy (LLLT), is a non-invasive treatment that exposes skin and cells to low levels of red and near-infrared light. It uses LED lamps or lasers in the 600-900 nanometer wavelength range. This light penetrates the skin where it’s absorbed by cells. The light signals the cells to produce more ATP (cell energy), key antioxidants, and other revitalizing substances. This helps reduce oxidative stress and inflammation in cells. Overall, red light therapy creates a more optimal cellular environment to enhance skin’s natural healing processes.

How Red Light Therapy Helps Dermatitis?

Dermatitis arises from two core problems – a damaged skin barrier and immune dysfunction causing increased inflammation. Red light therapy provides natural relief by addressing these root causes in the following ways:

Calms Inflammation
The red light is absorbed by cells that release cytochrome c oxidase. This reduces levels of inflammatory cytokines, histamines, prostaglandins, and other compounds that worsen dermatitis inflammation and itching.

Repairs Skin Barrier
It stimulates fibroblasts to produce more collagen and elastin. It also increases levels of antimicrobial peptides in the skin to prevent infection. This helps restore the protective barrier.

Improves Circulation
Poor circulation contributes to the dry, flaky skin seen in dermatitis. Red light improves microcirculation in the tiny blood vessels of the skin. Better blood flow equals better delivery of nourishing oxygen and vital nutrients.

Reduces Oxidative Damage
Inflammation generates reactive oxygen species that damage skin cells. The light boosts antioxidant defenses and repairs cells to minimize oxidative injury.

Improves Cell Energy
By stimulating ATP production in mitochondria, red light gives skin cells an energizing boost. This supports optimal cell function and helps normalize disturbed skin cell activity.

Manages Immune Dysfunction
Red light calms overactive immune cells like T-cells, mast cells, and macrophages that drive inflammation in eczema and atopic dermatitis. It helps restore immune balance and reduce autoimmune reactions.

Eliminates Bacteria
Red light has mild antibacterial effects that help clear away harmful bacteria like Staph that infect broken skin and worsen dermatitis lesions.

Relieves Itching
Studies find red light therapy significantly reduces itching severity by stabilizing mast cells that release histamine and other pruritogens. This provides welcomed relief.

As you can see, red light targets many of the key underlying issues like inflammation, a damaged barrier, and infections that drive dermatitis flare-ups and symptoms. Let’s look now at some clinical research demonstrating its efficacy.

How Red Light Therapy Helps Dermatitis?

Source: The picture comes from the Internet

Research on Red Light therapy for Dermatitis

But does the science actually back this up? Is there solid evidence proving red light can successfully treat dermatitis? Several promising studies suggest the answer is YES!

For example, A 1993 study on patients with eczema atopic dermatitis found that after receiving 830nm red light treatment, the itching was reduced and the rash improved.[1]

In a 2013 study, researchers found many benefits of light therapy for treating eczema[2]:

  • Significantly reduces the severity of skin lesions
  • Reduce inflammation
  • Restore skin barrier

A 12-week rater-blinded randomized study in 2016 found that 445nm and 630nm phototherapy improved inflammatory acne lesions.[3]

More high-quality research is underway, but the existing studies demonstrate light therapy’s ability to safely and effectively treat this frustrating condition.

Research on Red Light therapy for Dermatitis

Source: The picture comes from the Internet

Comparing Red Light Therapy to Other Dermatitis Treatments

Some common medical treatments for managing dermatitis include steroids, antihistamines, immunosuppressants, and phototherapy. How does non-invasive red light therapy compare? Red light therapy offers several advantages:

  • Steroid-free – Long-term steroids have side effects like skin thinning, susceptibility to infections. Red light is a steroid-free alternative.
  • No harsh chemicals – Red light works by delivering photons into cells. It doesn’t require applying any harsh prescription ointments, creams etc.
  • Well-tolerated – Red light therapy has minimal side effects compared to medications that commonly cause nausea, headaches, fatigue.
  • Use at home – Red light devices are safe for at-home use. Other phototherapies require going to a clinic 2-3 times a week.
  • Natural results – Red light supports the body’s natural ability to heal instead of artificially suppressing symptoms.
  • Child-safe – Red light therapy is safe and well-tolerated in children for treating pediatric dermatitis and eczema.
  • No UV – Red light is free of harmful UV rays that cause aging, sun damage or skin cancer risk.

As you can see, red light therapy provides a safer, more natural option compared to standard dermatitis treatments.

Are There Any Side Effects of Red Light Therapy?

One of the perks of red light therapy is the very low risk profile, especially compared to medications. Most people can use red light daily with virtually zero side effects. However, be sure to keep these precautions in mind:

  1. Avoid aiming light directly into the eyes. Use protective eyewear if needed.
  2. Start gradually and do not exceed recommended treatment lengths until your skin adjusts.
  3. Read all warnings that come with your light device and consult your doctor if pregnant.
  4. Stop use if you experience any discomfort or reactions. Seek medical advice for any concerns.
  5. Anyone with lupus or porphyria (rare genetic disorders) should avoid red light exposure as it may worsen symptoms.
  6. This is not a replacement for medical treatment. Work with your dermatologist for comprehensive dermatitis management.
  7. Use red light as part of a full regimen including gentle skincare, anti-itch creams, avoiding irritants/triggers, managing stress, etc.

Why RedDot LED Devices Are the Best for Dermatitis?

While the science is crystal clear on red light for dermatitis, results can vary based on the quality of the device you use. Not all red light devices are created equal! Here’s what makes RedDot LED the top choice:

  1. Medical-grade LEDs emitting therapeutic red/NIR wavelengths: RedDot devices use only industry-leading LEDs to deliver the specific wavelengths clinically proven to provide relief.
  2. Full-body treatment capabilities: RedDot offers both small handheld units and full-body panels. This allows you to target specific areas or your whole body for comprehensive relief.
  3. Quality manufacturing: RedDot LED devices are made and tested to the highest standards for reliable performance. We back all our products with a 3-year warranty.
  4. Timer function: Devices shut off automatically so you never accidentally overdo your light session.

With RedDot LED, you get professional red light therapy results from the comfort and convenience of home. Treat stubborn dermatitis flare-ups without any medications or need to travel to a clinic.



[1]H Morita, J Kohno, M Hori, Y Kitano. Clinical application of low reactive level laser therapy (LLLT) for atopic dermatitis. Keio J Med. 1993 Dec;42(4):174-6.

[2]Chang-Hyun Kim, Kyung Ah Cheong, Ai-Young Lee. 850nm light-emitting-diode phototherapy plus low-dose tacrolimus (FK-506) as combination therapy in the treatment of Dermatophagoides farinae-induced atopic dermatitis-like skin lesions in NC /Nga mice. J Dermatol Sci. 2013 Nov;72(2):142-8.

[3]Mark S. Nestor, Nicole Swenson, Angela Macri, et al. Efficacy and Tolerability of a Combined 445nm and 630nm Over-the-counter Light Therapy Mask with and without Topical Salicylic Acid versus Topical Benzoyl Peroxide for the Treatment of Mild-to-moderate Acne Vulgaris. J Clin Aesthet Dermatol. 2016 Mar; 9(3): 25–35.

Published by reddotled.com (Repost Tips)