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Is Red Light Therapy Safe? Here's What You Need to Know
27.05.25
Red light therapy has become one of the most talked-about wellness technologies in recent years. From improving skin clarity and easing joint pain to supporting sleep and recovery, it's quickly gaining traction as a go-to tool for natural health support.
But while the benefits are promising, many people still wonder: is red light therapy actually safe?
In this article, we break down what red light therapy is, how it works, and the latest evidence on its safety - so you can make an informed choice for your wellbeing.
What is Red Light Therapy?
Red light therapy, sometimes referred to as low-level light therapy (LLLT) or photobiomodulation, uses specific wavelengths of red and near-infrared light to stimulate natural processes within the body.
These wavelengths, generally between 630nm and 850nm, penetrate beneath the skin's surface, helping to:
* Boost energy production at the cellular level (ATP)
* Improve blood flow and oxygen delivery
* Reduce inflammation and oxidative stress
* Support tissue repair and healing
Baxter Blue’s Red Light Therapy devices are designed with these wavelengths in mind, combining multiple clinically backed nanometers in each device to help you get the most out of every session.
Is Red Light Therapy Safe?
Based on current research and clinical use, red light therapy is considered safe for most people when used correctly and consistently. Here’s why:
Non-Ionising Light = No Cellular Damage
Red and near-infrared light belong to the non-ionising category of electromagnetic radiation. This means they do not carry enough energy to damage DNA or alter cellular structure—unlike harmful UV rays or X-rays.
Gentle and Low-Heat
Red light therapy does not rely on heat to be effective. Most high-quality devices operate at a low power density and do not heat the skin, making it a gentle and comfortable experience even with regular use.
Well-Studied and Widely Used
Thousands of peer-reviewed studies have explored red light therapy’s impact on everything from wound healing and skin health to inflammation and muscle recovery—with safety consistently reported as a strength of the modality.
You can explore more in our Red Light Therapy Blog Hub, where we dive into benefits and usage tips for a range of wellness goals.
Are There Any Risks or Side Effects?
While side effects are rare, some people may experience mild and temporary reactions, particularly when using red light therapy for the first time.
Possible (but uncommon) side effects:
* Mild skin sensitivity such as redness or tightness, usually resolving within a few hours
* Eye sensitivity especially during facial treatments—this can be avoided with proper eye protection
* Increased sun sensitivity in some individuals, so it’s smart to use SPF if you’re heading out right after a session
The key to safety is proper use, always follow the recommended usage time, distance, and protective guidelines included with your device.
Tips for Using Red Light Therapy Safely
1. Choose a trusted, high-quality device
Look for panels that offer clinically supported wavelengths, low EMF emissions, and flicker-free light. Our Red Light Therapy range features all of these, along with a 3-year warranty and TGA certification for added peace of mind.
2. Protect your eyes during facial use
Especially with face-focused devices like our Red Light Therapy Mask, we include protective goggles to prevent discomfort or long-term damage from bright exposure.
3. Stick to the recommended treatment duration
Most sessions should last around 10–20 minutes, depending on your goals. More isn’t always better—consistency and correct usage matter more than overuse.
Is Red Light Therapy Safe for Everyone?
Red light therapy is generally safe for a wide range of people, but there are a few groups who should check with their doctor before starting:
* People with epilepsy or light-triggered seizures
* Pregnant individuals
* Those on photosensitising medications
* Anyone with active cancer or a history of skin cancer
If you’re unsure, speak with your healthcare provider before beginning treatment.
Conclusion: Should You Be Concerned About Red Light Therapy Safety?
When used properly, red light therapy is a safe and well-researched option for supporting skin health, sleep, recovery, and more. With thousands of studies and decades of use across medical and wellness fields, it’s clear that this is a treatment with a strong safety profile and minimal risk.
At Baxter Blue, we’re committed to helping you feel your best—safely. Explore our range of red light therapy devices to get started or check out our blog on the best time of day to use red light for tips on when to fit it into your wellness routine.
FAQs
Can I use red light therapy more than once a day?
Yes, but once daily is usually sufficient. More frequent use may be helpful for specific concerns—just be sure to allow a few hours between sessions.
Is red light therapy safe to use before bed?
Absolutely. In fact, using red light therapy in the evening can help improve sleep by supporting your body’s natural melatonin cycle.
Can I wear makeup during red light therapy?
No. For best results, apply red light to clean, bare skin to allow optimal light penetration.
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