How to choose and use an LED face mask correctly

A practical guide with expert tips to get the most out of beauty technology
By Violeta Valdés · February 17, 2025

LED face masks have become one of the most popular devices for at-home skincare. However, the wide variety of models and technologies can be overwhelming. Which one is right for you? What factors should you consider before buying one?

With the help of Miren García-Chazarra , co-founder of Glo , and Sara Riballo , PR Manager of Foreo , we have prepared a complete guide to help you choose well and use it correctly.

1. Choose the right LED mask: the importance of wavelengths

Each color of light penetrates to a different depth and serves a specific purpose. These are the key points, according to the experts:

• Clinically proven : make sure the wavelengths have been validated by studies.
• Sufficient power : if the intensity is low, you will need sessions that are too long to notice results.
• Suitable for your skin :
  • Red light + near infrared → rejuvenation.
  • Red light → acne treatment.
  • Yellow light → scars, dermatitis and rejuvenation.
  • Green light → spots and uneven tone.

“Each type of light penetrates to different depths, achieving a more specific and effective treatment,” explains García-Chazarra.

2. Material and design: much more than aesthetics

A good LED mask should not only look good: it should fit the face perfectly and be made with safe materials.

• Maximum proximity to the skin : the closer, the more effective the treatment. GloMask, for example, is made of flexible, medical-grade liquid silicone that is ultra-hygienic and hypoallergenic.
• Opaque on the outside and transparent on the inside : this prevents light leakage and improves LED penetration.
• Full coverage : look for models that reach critical areas such as between the eyebrows and around the eyes.
• Comfort : Ideally, it should be wireless and lightweight for comfortable use.
• Certifications : the most recognized are those of the FDA and CE , although it is also key that it is certified as a medical device .

3. How to properly use an LED face mask

Each device has its own instructions, but there are universal principles you should follow:

• Recommended duration : the optimal dose tested in clinical studies is 30 mW/cm² , reaching 18 joules/cm² after 10 minutes .
• Consistency : the key to success is regularity. Using it every day or every other day significantly improves results.
• Visible effects : Some people notice immediate changes (more radiance, relaxed skin), but lasting benefits come with continued use.

“If LED light therapy isn’t used every day, results may take longer to appear. Consistency is key,” says Riballo.

4. Contraindications and precautions

Although LED therapy is safe and does not emit UV rays , it is advisable to follow certain recommendations:

• Do not exceed the recommended time : going beyond 10 minutes can cause bioinhibition , a phenomenon in which light ceases to be beneficial.
• Long-lasting effect : after the session, the cells remain active for 24 to 48 hours , so it is not necessary to use it more than once a day.
• Avoid improvising : always follow clinically proven protocols to avoid irritation or lack of results.

Conclusion

Investing in a good LED facial mask can transform your beauty routine… as long as you choose the right model and use it consistently . Pay attention to the power, wavelengths, materials, and safety certifications. And remember: it's not about using it longer, but about using it better .