The science
How red light therapy works
Red and near infrared light are among the most studied wavelengths in skin research. Here is what the research shows, what it does not show, and how Gadecci uses it.
The technology
What is photobiomodulation?
Photobiomodulation, also called low level light therapy, uses specific wavelengths of red and near infrared light to prompt a response in living cells. It is not heat, ultraviolet light, or laser ablation.
Researchers believe light at these wavelengths is absorbed by mitochondria, the part of the cell that produces energy, including an enzyme called cytochrome c oxidase. That is thought to raise cellular energy (ATP) production and support processes such as collagen production and tissue repair. The exact mechanisms are still being studied.
- 1Light reaches the skin
Red light (630nm) is absorbed in the upper layers of skin. Near infrared light (850nm) penetrates deeper.
- 2Cells respond
Mitochondria absorb the light, which is thought to increase cellular energy production.
- 3Skin supports itself
Researchers study this response for its role in collagen production and skin repair. Results build with consistent use and vary from person to person.
The light inside Gadecci
Four light modes
A red wavelength widely studied for skin. Absorbed in the upper layers of the skin.
Invisible light that penetrates deeper than red light. Paired with 630nm in the study below.
An additional light mode included in the mask.
An additional light mode included in the mask.
The LEDs sit right on your skin and the mask shuts off on its own after 10 minutes. Gadecci is FDA cleared for wrinkle reduction.
The evidence
What the research shows
Published study of 630nm and 850nm light
86% to 89% of mask users showed improved crow's feet at 12 weeks
Park SH, Park SO, Jung JA. Medicine (Baltimore), 2025. A multi center, randomized, double blind, sham controlled study of a home use mask that combines 630nm LEDs and 850nm infrared light. 59 adults used the mask for 9 minutes a day, 5 days a week, for 12 weeks.
At 12 weeks, independent raters judged crow's feet improved in 86.2% of the treatment group in the full analysis, compared with 16.7% of the sham group. In the per protocol analysis, 89.3% (25 of 28 participants) improved. No serious adverse events were reported.
At home or in a clinic
What is different about home use
Clinic devices are usually more powerful and are run by a professional. Gadecci is built for convenience. The LEDs sit on your skin, a session takes 10 minutes, and you can use it any day without an appointment.
It does not replace medical care. If you have a skin condition, ask your dermatologist whether LED therapy is right for you.
What to expect
Give it time
Many people notice smoother texture within 3 to 4 weeks of daily use, and changes in fine lines and firmness around the 6 to 8 week mark. Results vary. That is why every order comes with a 60 day money back trial.
Safety
Who should check first
Red light therapy is non thermal and non ablative, which means it does not generate heat or remove skin tissue. Use the included eye shields or keep your eyes closed during every session.
Talk to your doctor before use if you are pregnant or breastfeeding, take photosensitizing medications, have a diagnosed photosensitivity condition, or have any skin concern. Stop using the mask and check with your doctor if you notice irritation.
Try it on your own skin
Use Gadecci for 60 days. If you are not satisfied, you get a full refund, and we cover the return shipping.
Try risk free for 60 days · £113FDA cleared · Free shipping to the US · Delivery in 8 to 12 days