If you’re reading this article, chances are you’ve reached that point where you’ve decided it’s time to start investing in yourself.
Maybe you’ve finally been able to make yourself a priority and you’re looking for an easy yet effective way to look your best. Perhaps you already have a skincare routine you love and that works for you, but you feel like you need that extra boost in your daily routine.
You’ve heard about light therapy and you’re looking for an LED mask that actually delivers results—but you’re not sure which one to choose.
To make the right choice, there’s one concept you need to understand: IRRADIANCE, and why it should play a key role in choosing your LED mask.
But first, you need to understand that talking about LED technology means talking about wavelengths.
This technology works by emitting different wavelengths—or “colors”—within the light spectrum. Some of them, such as infrared wavelengths, aren’t visible to the human eye. Each wavelength penetrates to a different depth and interacts with different layers of the skin.
There are countless devices on the market offering a wide range of colors, but the wavelengths with clinical research behind them include:
Blue light: 415 nm
Red light: 610, 630, and 660 nm
Near-infrared (NIR): 830 and 850 nm
Deep near-infrared: 1070–1072 nm
So, what role does irradiance play when choosing an LED mask?
Irradiance helps determine the right dose of light your skin needs over a given period of time.
In other words, it helps determine how long your LED light therapy mask needs to be used to deliver the intended benefits.
Understanding this concept is important because, with LED technology, the goal isn’t to deliver the highest possible power, but rather the right dose.
If wavelength determines “which tissue we want to stimulate,” irradiance helps determine how long that tissue needs to be exposed to the light to receive the appropriate dose.
So, what you really need to look at is the dose that has been clinically tested for an LED mask to be effective.
The formula used to calculate the delivered dose is:
Dose (J/cm²) = Irradiance (mW/cm²) × Time (seconds) / 1,000
Many clinical studies on LED photobiomodulation use a dose of approximately 18 J/cm².
That’s why at Glo, as beauty technology experts, we choose to develop devices backed by clinical studies—so you can feel confident that the results are real, measurable, and proven.
Real Results from Our Clinical Study
Use: 5 days a week for 8 weeks.
Glo Mask, our medical-grade LED light therapy mask, features three clinically tested wavelengths and an irradiance of 30 mW/cm². This allows it to deliver the optimal dose in just 10 minutes per session. With consistent use 5 days a week, Glo Mask delivers significant skin benefits backed by clinical studies.
With Glo Mask, just 10 minutes a day, 5 times a week can help you achieve more radiant, hydrated, and rejuvenated-looking skin—all from the comfort of your own home, designed to fit seamlessly into your everyday routine.
