Are there risks of skin damage from light therapy?
Written by
David Nelson
Reviewed by
Prof. Graham Pierce, Ph.D.Light therapy presents little risk for skin injury when one uses FDA-cleared devices in accordance with the manufacturer's instructions. Unlike ultraviolet light, therapeutic wavelength(s) do not harm DNA or create cellular mutations. Temporary redness may occur but typically resolves within a matter of hours, leaving no residual change. I assure my clients of the safety of these devices, based on my knowledge of the extensive clinical research.
Device Certification
- Critical Factor: FDA clearance ensures proper wavelength output
- Risk: Non-certified devices may emit harmful radiation
- Action: Always verify FDA registration before purchase
Eye Protection
- Essential Gear: Manufacturer-provided goggles
- Risk: Retinal damage from direct exposure
- Protocol: Never look at active light sources
Skin Sensitivity
- Common Reaction: Temporary redness or warmth
- Management: Reduce session duration if persistent
- Contraindication: Active skin cancer lesions
The quality of the device has a substantial bearing on safety. FDA-approved products have undergone rigorous testing for wavelength accuracy and intensity controls. If it is not FDA approved, it can produce the wrong spectrum of light or generate excessive heat. I have tested many devices and always recommend verified, medical-grade equipment.
Eye protection is important and cannot be compromised during the sessions. Therapeutic light can cause damage to the retina if it comes into direct contact with the eye. It is critical to always ensure that your client wears the goggles provided by the manufacturer, which filter specific wavelengths. I have watched clients develop headaches from not following this simple rule.
Skin reactions often indicate improper use rather than inherent risk. Long applications beyond recommended times can provoke temporary redness. Long areas, such as the face, should use shorter preliminary treatments. I suggest that the patient start with approximately one-half of the time advised and increase gradually.
Some drugs create photosensitivity, requiring specific precautions. Antibiotics such as tetracycline and some antidepressants increase light sensitivity. Please inform us about all medications you are currently taking before your treatment. I usually coordinate with the pharmacist to modify any protocols as needed.
Compared to many treatments, light therapy has a superior safety profile. Adhering to protocols, millions of people employ light therapy devices without complications. I continue to maintain detailed records of clients, demonstrating a minimal number of adverse events throughout my years of practice.
Read the full article: 8 Light Therapy Benefits Explained Simply
