Who Should Not Use Red Light Therapy? 5 Key Reasons

Red light therapy is widely promoted as a safe, non-invasive treatment for skin rejuvenation, pain relief, and overall wellness. However, it’s not suitable for everyone. Certain health conditions, medications, and life circumstances can make red light therapy risky or less effective.

Understanding these contraindications-supported by expert sources such as the American Academy of Dermatology, Cleveland Clinic, and device manufacturer guidelines-will help you make informed, safe choices.

Table of Contents

Key Takeaways

Individuals with active cancer or a history of skin cancer should avoid red light therapy.
Those with photosensitivity disorders or on light-sensitizing medications are at increased risk of adverse reactions.
Pregnant individuals should consult their healthcare provider before using red light therapy.
People with seizure disorders, such as epilepsy, should exercise caution with any light-based treatment.
Those with thyroid conditions or recent eye surgery should seek medical advice before use.

1. Active Cancer or History of Skin Cancer

Red light therapy is not recommended for people with active cancer or a history of skin cancer. According to the American Academy of Dermatology and Cleveland Clinic, red and near-infrared light can stimulate cell growth, which could theoretically accelerate the growth of malignant or precancerous cells.

The safety of light therapy in cancer patients remains unproven, and most device manufacturers list cancer as a contraindication. If you have or have had cancer, always consult your oncologist before considering red light therapy.

2. Photosensitivity Disorders and Light-Sensitizing Medications

Red light therapy can cause burns, rashes, or severe irritation in people with photosensitivity disorders (such as lupus or porphyria) or those taking light-sensitizing medications. The Mayo Clinic and device instructions warn that antibiotics (like doxycycline), antifungals, retinoids, and some chemotherapy agents can increase light sensitivity.

Always review your medications and medical history with a healthcare provider before starting red light therapy. If you experience unusual redness or discomfort, discontinue use and seek medical advice.

3. Pregnancy

There is limited research on the safety of red light therapy during pregnancy. As a precaution, the Cleveland Clinic and most device manufacturers advise pregnant individuals to avoid red light therapy, especially over the abdomen or pelvic area. If you are pregnant or planning to become pregnant, consult your doctor before using any light-based treatments.

4. Seizure Disorders (Epilepsy)

Light-based therapies, including red light therapy, can sometimes trigger seizures in people with epilepsy or other seizure disorders. The Epilepsy Foundation notes that flickering or pulsing lights-even those not visible to the naked eye-may provoke seizures in sensitive individuals. If you have a history of seizures, consult your neurologist before starting red light therapy and look for devices designed to minimize flicker.

5. Thyroid Conditions and Recent Eye Surgery

People with thyroid disorders, especially hyperthyroidism, should not use red light therapy over the neck or upper chest without medical supervision, as light exposure may stimulate the thyroid gland. Likewise, those who have had recent eye surgery or have diagnosed eye conditions should avoid red light therapy near the eyes unless cleared by an ophthalmologist. Always use protective eyewear during facial treatments to prevent potential eye damage, as recommended by the American Academy of Ophthalmology.

Additional Considerations

Always read device instructions and warnings for any additional contraindications specific to your chosen product.

If you have any chronic medical condition or are unsure about your suitability for red light therapy, consult your healthcare provider before starting.

Conclusion

While red light therapy offers many benefits for skin and wellness, it is not appropriate for everyone. Individuals with active cancer, photosensitivity disorders, pregnancy, seizure conditions, thyroid disease, or recent eye surgery should approach this treatment with caution and always seek medical advice first.

By understanding these key contraindications and following expert recommendations, you can make safer choices and get the most out of your skincare and wellness routine. For more safety guidance and practical tips, explore our complete beginner’s guide to red light therapy for the face or consult your healthcare provider for personalized advice.