Is Red Light Therapy Safe? Side Effects & Who Should Avoid It

Why red light is considered gentle

Red light therapy uses visible red and near-infrared light, not ultraviolet (UV) light. It doesn't tan or burn the skin and doesn't cause the kind of DNA damage associated with UV exposure. At-home devices also use lower power than clinical systems, which is why they're designed for short, frequent sessions.

Possible side effects

Side effects are uncommon and usually mild when devices are used as directed. Some people notice:

• Temporary redness or warmth after a session
• Mild dryness or tightness, especially with combined heat
• Eye discomfort if bright LEDs are viewed directly

Protect your eyes

Never look directly into the light. For full-face masks, many manufacturers recommend eye protection. With a handheld device used on the lower face, keep the light pointed at your skin and away from your eyes.

Who should check with a doctor first

Talk to a healthcare provider before using red light therapy — or any device with heat or vibration — if any of these apply:

• Pregnancy or breastfeeding
• A pacemaker or other implanted electronic device
• Metal implants in the treatment area
• Epilepsy or a history of light-triggered seizures
• Taking photosensitizing medications (some antibiotics, acne medications, and others)
• Active skin conditions, suspicious moles, or skin cancer history
• Recent cosmetic procedures, such as fillers or laser treatments, in the area

Tips for safe use at home

Follow the manufacturer's session time — more isn't better. Use the device on clean skin, avoid broken or irritated areas, and stop if you notice unusual discomfort. The Renewa iLift is designed for 5-minute daily sessions (up to 15 minutes) and comes with a user guide covering these precautions.