Artificial light has hijacked our biology. For hundreds of thousands of years, humans lived by firelight and darkness after sunset. But today, our eyes are bombarded by intense blue and green light deep into the night—from screens, LEDs, and indoor lighting. This light tells your brain it's still daytime, suppressing melatonin, elevating cortisol, and throwing your sleep into chaos.

TrueBlockers are built on one scientific truth:

To restore deep, natural sleep—you must block the entire sleep-disrupting light spectrum (380–550nm). That’s not a marketing claim. It’s what peer-reviewed research and lab data confirm again and again.

What Happens When You Truly Block the Right Light?

✅ Up to 2–3x more natural melatonin production

✅ Fall asleep faster and stay asleep longer

✅ Wake up with higher energy and better mood

✅ Better cognitive performance the next day

✅ Deeper, more restorative sleep (increased slow-wave activity)

✅ Fewer nighttime wake-ups and less tossing and turning

✅ Natural alignment of your circadian rhythm

✅ Reduction in cortisol spikes at night

✅ Improved sleep even in shift workers and screen-heavy lifestyles

Disclaimer:
While TrueBlockers are designed based on peer-reviewed research, individual results may vary. These statements are not intended to diagnose, treat, cure, or prevent any medical condition. Always consult with a healthcare provider for sleep-related concerns.

🔬 Peer-Reviewed Studies That Prove It

1. Amber lenses at night = 2–3x higher melatonin production.

🔗 Burkhart & Phelps, Chronobiology International, 2015

2. Blue-blocking glasses improved sleep onset and quality in insomnia patients.

🔗 Shechter et al., Journal of Psychiatric Research, 2017

3. Green light (~520nm) suppresses melatonin nearly as much as blue light.

🔗 Brainard et al., Journal of Neuroscience, 2001

4. Blocking both blue & green light resets circadian rhythm in night-shift workers.

🔗 Sasseville et al., Journal of Pineal Research, 2009

5. Evening exposure to 460nm blue light suppresses melatonin and delays sleep.

🔗 Gooley et al., Journal of Clinical Endocrinology & Metabolism, 2010

6. Wavelengths up to 550nm suppress melatonin, not just below 450nm.

🔗 Lockley et al., Journal of Clinical Endocrinology & Metabolism, 2003

7. Melatonin suppression is dose-dependent on both intensity and wavelength.

🔗 Cajochen et al., Physiology & Behavior, 2005

8. Peak melatonin suppression occurs at 460–480nm—directly in TrueBlockers' range.

🔗 Thapan et al., Journal of Physiology, 2001

9. Red light does not suppress melatonin—safe for use before sleep.

🔗 Yeager et al., Medical Hypotheses, 2007

10. Blue light at night impairs cognition and suppresses melatonin—especially in youth.

🔗 Higuchi et al., Journal of Physiological Anthropology, 2005

11. Blue-blocking glasses improved sleep and mood in bipolar patients.

🔗 Henriksen et al., Bipolar Disorders, 2016

12. Light exposure before bedtime delays melatonin and reduces sleepiness.

🔗 Chang et al., PNAS, 2015

13. Suppressing nighttime light improves sleep, alertness, and mood in office workers.

🔗 Aeschbach et al., Chronobiology International, 2013

14. Light wavelength affects both alertness and sleep quality differently.

🔗 Rahman et al., PLOS ONE, 2014

15. Melatonin suppression happens even at low light intensities (~30 lux).

🔗 Zeitzer et al., Journal of Clinical Endocrinology & Metabolism, 2000