history of light & mankind

TrueDark Science

Light has guided the biological clock of mankind since their dawning. Learn how to keep your circadian rhythm in balance in the twenty-first century. 

graph showing wavelength of Sunlight, LED, incandescent and CFL blubs
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). 

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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.

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. 

TrueDark How it Works INFOGRAPHIC
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.

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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.

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.

Clear Daylights

  • Blocks 34-40% 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 polycarbonate lenses
  • Available in Rx & Build A Pair styles

Yellow 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
  • Available in Rx & Build A Pair styles

Gradient Twilight

  • 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
  • Available in Rx & Build A Pair styles

Red Twilight

  • Blocks 98% 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
  • Available in Rx & Build A Pair styles

Biohack your light and Biohack your sleep!

$89.00

Stylish, streamlined design, lightweight aircraft-grade aluminum frame, nighttime junk light blockers.

$89.00

Sport-style, with full coverage foam barrier for maximum nighttime junk light blocking protection.

$89.00

Gradient lenses, stylish, streamlined design, matte black lightweight polycarbonate frame, nighttime junk light blockers.

$89.00

Eyewear with innovative gradient lens technology that bridges the active and relaxing hours between sunset and bedtime.

$89.00

Yellow lenses, contemporary horn-rimmed aviator style, light gold stainless steel frame, daytime junk light blockers. Photochromic lenses darken and lighten as the outdoor light changes to block 99% of UVA/UVB.

$79.00

Clear lenses, 40% blue spectrum blocked, streamlined design, grey tortoiseshell acetate frame, daytime junk light blockers.

$89.00

Stylish, streamlined design, lightweight aircraft-grade aluminum frame, computer and junk light blue light blockers.

$215.00

Modern classic design, matte black fade to grey tortoiseshell acetate frame; spring-hinged for a more customized fit. Please note, the actual pattern on the frame may vary slightly from the one pictured. Please expect a 4-6 week processing time. Your order will be directly shipped to you from the manufacturer.