What is UV LED technology for eyelash extensions?
UV LED lamps used for eyelash extensions typically emit in the UV-A spectrum (395–405 nm).
Unlike UV-B or UV-C, UV-A is less energetic and penetrates less deeply into tissues, remaining mainly on the surface. This light is used to cure the adhesive and quickly set the extensions.
IEC 62471: The International Standard for Photobiological Safety
To assess the risks associated with UV LEDs, manufacturers use the IEC 62471 standard, which classifies devices according to their potential impact on the eyes and skin.
The criteria analyzed:
- Light intensity
- Exposure distance
- Exposure duration
- Wavelength
IEC 62471 Risk Categories
| Group | Risk Level |
|---|---|
| 0 | Exempt, safe under all conditions |
| 1 | Low risk under normal conditions |
| 2 | Moderate risk, depends on exposure |
| 3 | High risk, dangerous even short-term |
Most LED devices used in aesthetics belong to groups 0 or 1, therefore considered safe when used correctly.
Distance and duration: keys to safety
Even a certified device can become risky if:
- It is too close to the eyes
- Exposure is too long
Professionals must always adhere to recommended distances and limit exposure duration.
Potential risks for the eyes
- Corneal and skin irritation: excessive exposure can cause redness, inflammation, or superficial lesions.
- Photoretinal damage: certain high-intensity wavelengths can affect the retina.
- Cumulative effect: even low, repeated exposure can be problematic in the long term.
Concretely, what do studies say about eyelash extensions?
- Sessions are short (a few minutes per application)
- Eyes are closed during application
- Light is localized on the eyelashes, not directly on the eyes
✅ These factors significantly reduce the actual risk.
Good practices for safe use
For professionals:
- Check IEC 62471 certifications
- Respect the recommended distance
- Limit exposure duration
- Use eye protection if necessary
For clients:
- Keep eyes closed
- Ask questions about the equipment used
- Avoid sessions if you have particular eye sensitivity
At RASTELLI, we only use certified products that comply with IEC 62471 standards, ensuring maximum safety for your eyes and skin. Furthermore, if you wish to deepen your knowledge, we offer a comprehensive online training course on the safe use of UV LEDs for eyelash extensions, allowing you to learn directly with our experts and master all aspects of this technology.
Conclusion: Safety and Precaution
UV LED eyelash extensions are generally safe when used correctly.
Safety primarily depends on three factors:
- Equipment quality
- Compliance with standards
- Proper use by the professional
As with any aesthetic technology, prudence and knowledge of standards remain essential to enjoy the benefits without risk.