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With any new technology, it's natural to have questions about safety. Red light therapy is no exception, and concerns about cancer risk are understandable. Let's address this directly.
No, red light therapy does not cause cancer. In fact, it is being investigated as a potential treatment for some side effects of cancer treatment. Red light therapy uses low levels of red and near-infrared light, which are not harmful and do not damage DNA like ionizing radiation (such as X-rays or UV rays).
Red light is not cancerous.
At REDDOT LED, we prioritize the safety of our customers above all else. Let's delve into the science behind red light therapy and address the common concerns surrounding cancer risk.
Let's tackle this question head-on. Is there any evidence to suggest that red light therapy could lead to cancer?
Red light therapy is not cancerous and does not increase your risk of developing cancer. 1 Unlike ultraviolet (UV) light, which is known to cause skin cancer, red light uses a different part of the light spectrum that is not harmful to cells. It can even help treat the side effects of cancer treatments. 2
It's important to distinguish between different types of light and their effects on the body.
While red light therapy is generally considered safe, it's important to be aware of potential risks and side effects.
Red light therapy is generally safe, but potential risks include mild skin irritation, redness, dryness, and, in rare cases, burns if used improperly. 3 Eye strain or discomfort may also occur if protective eyewear is not used. People with certain skin conditions or sensitivities should consult with a healthcare professional before using red light therapy.
Mild skin irritation is a possible risk.
Proper usage and awareness of potential sensitivities can help minimize these risks.
At REDDOT LED, we prioritize user safety and provide clear usage guidelines for all of our products. Our support team is always available to address any concerns you may have.
Understanding the depth of penetration is key to understanding the effects of red light therapy.
Red light therapy primarily affects the skin and underlying tissues, but it can also have indirect effects on organs through improved circulation and reduced inflammation. 4 Red light penetrates the skin to a depth of about 1 to 2 millimeters, which is sufficient to reach cells and tissues beneath the surface.
Red light reaches skin and tissues.
While it doesn't directly target internal organs, its systemic effects can be beneficial.
Let's address another common concern: can red light therapy accelerate the aging process?
No, red light therapy does not age you. 5 In fact, it is often used as an anti-aging treatment to improve skin elasticity, reduce wrinkles, and promote collagen production. By stimulating cellular function and promoting healing, red light therapy can help to rejuvenate the skin and reverse some of the signs of aging.
Red light can reduce wrinkles.
The reality is quite the opposite – red light therapy is often used to combat the signs of aging.
REDDOT LED devices are designed to deliver safe and effective red light therapy for a variety of applications, including anti-aging. We are committed to providing our customers with high-quality products and reliable information.
Red light does not cause cancer. Risks include mild irritation. Red light reaches skin and tissues. Red light can reduce wrinkles.
References
Red Light Therapy: Benefits, Side Effects, and More , Healthline, Erica Roth, November 15, 2022. (Red light is not carcinogenic) ↩
The Use of Red and Near-Infrared Light in Oncology , NIH, Javad Mortazavi, Jun 29, 2022. (Red light and oncology) ↩
What are the Side Effects of Red Light Therapy? , Cleveland Clinic, Feb 9, 2023. (Side effects and risks) ↩
Does LED Therapy Really Work? Here's What Experts Say , Good Housekeeping, Chiara Risella, December 9, 2024. (LED therapy effectiveness) ↩
LED light therapy: How it works, benefits, and risks , American Academy of Dermatology. (LED light therapy for aging) ↩