Curious about natural ways to support your skin health, energy levels, and any aches and pains? You may have stumbled upon red light therapy.
This treatment has gained popularity for its many wellness benefits, but we’ve encountered some people wondering if red light therapy causes cancer.
We’re not surprised by this query. Especially as we get closer to summer, when UV levels and skin cancer are on everyone’s minds.
At the Center for New Medicine (CFNM) in Irvine, CA, we want to separate myth from fact. Let’s explore how red light therapy does not cause cancer, how it differs from ultraviolet light, and how you can protect your skin from damage as the sun’s intensity increases this time of year.
So, Can Red Light Therapy Cause Cancer?
The short answer is no—red light therapy does not cause cancer. In fact, it’s been studied for its potential anti-cancer effects, especially in how it supports healthy cell function and immune resilience.
When people ask, “Can red light therapy cause cancer?” they’re often confusing it with UV (ultraviolet) radiation from the sun or tanning beds. UV light is known to penetrate the skin and damage DNA, which can directly increase the risk of skin cancer over time. Red light therapy, on the other hand, uses wavelengths that are non-ionizing—meaning they do not carry enough energy to alter or damage DNA.
Understanding the Wavelengths
- Ultraviolet (UV) light falls below 400 nanometers and is the type associated with sunburn, photoaging, and skin cancer.
- Red light is typically in the 620–750 nanometer range.
- Near-infrared (NIR) used in many red light devices is between 750–1100 nanometers.
These longer wavelengths of red and NIR light do not harm skin cells. Instead, they penetrate the surface layers of the skin to stimulate cellular repair, collagen production, mitochondrial function, and circulation.
So again, let’s answer the question: Can red light therapy cause cancer? The answer is no—not only does red light therapy not cause cancer, but emerging research suggests it may help support cellular resilience, particularly after damage caused by oxidative stress or inflammation.
Learn more about how red light therapy works at CFNM here: https://cfnmedicine.com/services/red-light-therapy
Sunlight vs. Red Light: What’s the Difference?
It’s easy to lump all “light” together, but sunlight and red light therapy have completely different impacts on the body. While red light therapy is safe and controlled, natural sunlight contains both helpful and harmful wavelengths.
- Sunlight contains UV-A and UV-B, both of which are known to increase the risk of skin cancer, accelerate skin aging, and cause pigmentation issues over time.
- Red light therapy contains no UV, and the devices used in our clinic at CFNM are calibrated to deliver safe, therapeutic wavelengths in a controlled environment.
So, while enjoying a bit of morning sun can be helpful for vitamin D production, excessive exposure—especially in the peak of summer—can be harmful. That’s why protecting your skin during the warmer months is essential.
Summer Skin Safety: Red Light vs. the Sun
Now that we’ve answered the question “Can red light therapy cause cancer?” and confirmed it’s safe, let’s pivot to the real risk: sun damage.
Here are some practical ways to protect your skin this summer:
1. Avoid Harmful Sunscreens
Many commercial sunscreens contain chemicals such as oxybenzone, avobenzone, and octinoxate—all of which have been linked to hormone disruption and cellular damage. Instead, look for mineral-based sunscreens with zinc oxide or titanium dioxide. These sit on the surface of your skin and reflect the sun’s rays without getting absorbed into your bloodstream.
2. Wear More Clothing, Not Less
While it might be tempting to bare more skin during the summer months, the best sun protection is physical. Light, breathable long-sleeved shirts, wide-brimmed hats, and UV-protective sunglasses go a long way in reducing exposure. Fabrics designed for sun protection (UPF-rated clothing) are an especially smart choice for beach days or long walks.
3. Stay in the Shade and Time Your Exposure
Limit your sun exposure during peak UV hours (10 a.m.–3 p.m.) and seek shade when possible. Early morning or late afternoon light carries less risk and still supports your circadian rhythm.
4. Hydrate and Nourish from Within
Drinking plenty of water and eating antioxidant-rich foods (such as berries, leafy greens, and healthy fats) can support skin resilience and repair. Glutathione, vitamin C, and collagen-boosting nutrients can also be delivered through IV therapy or red light therapy sessions at CFNM.
Why Choose Red Light Therapy at CFNM?
At the Center for New Medicine in Irvine, we offer red light therapy as part of a comprehensive integrative approach to skin, immune, and mitochondrial health. Whether you’re looking to reduce fine lines, support post-sun healing, or just optimize cellular energy, red light therapy is a safe, effective tool.
Plus, if you’re concerned about aging, inflammation, or healing from previous sun damage, our team can help you design a holistic care plan that includes the following:
- Red light therapy
- Nutritional IVs
- Antioxidant support
- Lifestyle and skincare recommendations
Red Light Is Safe—and Powerful
Let’s circle back to the matter at hand: red light therapy and skin cancer. All evidence says there is no correlation between the two.
Actually, it’s the opposite. Red light therapy will support your cells and skin without damaging any DNA. That’s why we utilize red light therapy for our patients.
One last friendly reminder: As we head into summer, be mindful of sun exposure and your skin. Gear up with clean sunscreen, protective clothing and hats, and adequate hydration.
When you want a safe, controlled, and restorative light experience, red light therapy is here to support you.
Book your session or learn more about red light therapy here: https://cfnmedicine.com/services/red-light-therapy
