TrueDark® Science
Artificial light can interrupt your natural circadian rhythm. Learn about the science behind our amber Daylight lenses and gradient and red Twilight lenses to unlock more energy and better sleep.
Sources of Blue Light
Mobile Devices
LED
Incandescent
CFL
Sunlight
Negative Affects of Excess Blue Light Exposure
Digital Eye Strain
Fatigue
Headaches
Inability to focus
Blurred vision
Damage to the retina
The TrueDark® Solution
For true 24-Hour light management, pair amber lensed Daylight glasses for blue light blocking protection with red lensed Twilights before bed for blue light blocking and natural melatonin production increase for better sleep.
know your lighting
Light is everywhere,
and it’s always on
Today, we live in an on-the-go society that is always “on”. In other words, humans no longer solely rely on sunlight and fire. We have light bulbs that illuminate our homes, office buildings, gyms, malls, and airports. And thanks to digital devices with LED screens (tablets, smartphones, laptops, etc.), we now have the power of light literally at our fingertips.
Natural Sunlight
Sunlight is comprised of red, orange, yellow, green, blue and violet light rays (the visible light spectrum). It’s specifically the blue rays that suppress melatonin levels and promote alertness.
Artificial Light Issues
Blue light is responsible for signaling to your brain that it’s time to wake up in the morning or go to sleep at night time. The key difference and problem that arises from using artificial light sources is that they mostly emit blue instead of the full visible light spectrum.
Circadian Rhythm
Many doctors and researchers are concerned about the amount of time people spend using digital devices, and the proximity of these screens to the user’s face, as these variables could have possible long-term effects on eye health, such as macular degeneration (the leading cause of blindness). At the very least, prolonged exposure to artificial blue light, or “junk light”, can unbalance your natural circadian rhythm.
Truedark® technology
Key to Managing the Your Light
Remember that the sun changes its position in the sky and emits different amounts of blue light throughout a cyclical 24-hour period. In order to keep your natural circadian rhythm aligned with the rise and fall of the sun, your body needs different amounts of blue light to promote either wakefulness or sleepiness. That is why TrueDark provides an authentic 24-hour solution to help you block out the right amount of junk light at the right time of day (or night).
In this graph, the red line symbolizes cortisol, which promotes alertness. The blue line symbolizes melatonin, which promotes sleepiness. This pattern repeats every 24 hours.
inside your eyes
How exposure to junk light affects your brain and body
Harmful blue light penetrates the macular pigment and can harm the retina.
When the melanopsin proteins detect blue light, they then suppress your body’s ability to produce melatonin, disrupting your natural sleep pattern.
light management done right
TrueDark® Solutions
Our four featured lens colors plus transitional sunglasses for Daylights™ allows you to choose the ultimate protection for your eyes against digital eye fatigue and enhance your melatonin for better, deeper sleep.
75%
Blue Light blocked with
Amber Daylights™ Lenses
85%
Blue Light Blocked with
Gradient Twilight Lenses
99%
Blue Light Blocked with
Red Twilight Lenses
Tech specs
TrueDark® 24-Hour Protection
When Dave Asprey set out to help people manage their light so they can live better quality lives, he knew light was a big challenge. He answered the issue with TrueDark® technology imbedded in his blue light managing glasses.
Amber Daylights™
- Blocks 75% of 380nm-500nm light wavelengths
- Transition Sunglasses blocks 75% of blue light
- Photochromic lenses darken to block 99% UVA/B
- Anti-reflective coating
- Scratch-Resistant polarized polycarbonate lenses
Sunset Twilights
- Blocks 85% of 380nm-500nm light wavelengths
- Suited for working later into evening & fall asleep relatively quickly
- Anti-reflective coating
- Scratch-Resistant polarized polycarbonate lenses
- Wear 30 minutes to 2 hours before sleeping
Red Twilights
- Blocks 99% of 380nm-500nm light wavelengths
- Classic Twilights glasses block 100%
- Works with melanopsin in the eye for melatonin access in the brain
- Anti-reflective coating
- Scratch-Resistant polarized polycarbonate lenses
Article support
The dark side of sleep deprevation
Insomnia
Some people may have mixed insomnia that involves both sleep-onset and sleep maintenance difficulties, and people with chronic insomnia may find that these symptoms shift over time.
