Safety & Side Effects
Can red light therapy cause cancer?
Standard red light therapy is not known to cause cancer. It uses low-energy red or near-infrared light, not ultraviolet (UV) radiation, which can damage DNA.
Reviews & guides
Cancer, pregnancy, eyes, headaches and daily use: the questions to settle before you put a mask on.

9 articles
Safety & Side Effects
Standard red light therapy is not known to cause cancer. It uses low-energy red or near-infrared light, not ultraviolet (UV) radiation, which can damage DNA.
Safety & Side Effects
Red light therapy can cause a headache in some people, but headaches are not considered a common reaction when a low-level LED device is used correctly.
Safety & Side Effects
It is best to avoid elective red light therapy during pregnancy unless your obstetric clinician approves the exact device and treatment plan.
Safety & Side Effects
Red light therapy is not known to cause cancer based on current evidence.
Safety & Side Effects
Red light therapy is not shown to cause skin cancer in current research.
Safety & Side Effects
Red light therapy is not a common cause of tiredness. Some people may feel relaxed or sleepy after a session, especially when treatment takes place in the.
Safety & Side Effects
Daily red light therapy is usually safe for healthy adults when the device is used exactly as directed, but daily treatment is not right for every device or.
Safety & Side Effects
Red light therapy is an investigational option for certain eye conditions, not a proven way to improve ordinary eyesight.
Safety & Side Effects
Red light therapy can be safe for some people with cancer, but it should not be used over an active or suspected tumor without approval from the oncology team.