blue-light-glasses
NightLens Blue Light Blocking Glasses
BlockBlueLight offers the best balance of clinical-grade spectrum accuracy and affordability. Their NightLens is specifically designed to block 100% of blue and green light up to 550nm, backed by accessible spectral analysis reports.
Quality & Materials
Uses lightweight polycarbonate or acetate frames with CR-39 lenses for their premium ranges. Lenses are specifically tinted to remove the entire sleep-disrupting spectrum.
Evidence & Testing
Internal and third-party testing confirms 100% blockage of the 400nm-550nm range, which is the gold standard for nighttime circadian support.
Brand Transparency
Extremely transparent; they provide a 'Spectrum Report' PDF directly on the product page.
Value Assessment
Excellent value. You get the same spectral protection as $150 glasses for nearly half the price.
Why Not Alternatives?
They outperform Swanwick in transparency by providing actual lab-grade spectrum reports, while remaining significantly cheaper than Ra Optics or Bon Charge.
Sources & References
More in Circadian & Light
Ra Optics
Sunset Lenses (Clyde Frame)
Ra Optics is the industry leader in precision optics for circadian health, utilizing proprietary pigments that provide a sharp 550nm cutoff. Unlike most competitors, they use high-quality CR-39 plastic lenses which offer superior optical clarity compared to cheap polycarbonate.
Bon Charge
Sleep Blue Light Blocking Glasses
Bon Charge (formerly BluBlox) offers laboratory-tested lenses that block 100% of the blue and green light spectrum from 400nm to 550nm. Their frames are exceptionally high quality, and they offer prescription, reading, and non-prescription options.
Swanwick
Classic Night Swannies
Swanwick is the brand that popularized blue blockers for sleep. Their orange 'Swannies' are effective at blocking blue light and are a reliable, well-reviewed entry point for those new to circadian optimization.
Mito Red Light
MitoPRO 300
The MitoPRO 300 is the industry benchmark for mid-sized panels, offering a quad-wavelength output (630nm, 660nm, 830nm, 850nm) that targets both surface skin and deep tissue. It features a flicker-free driver and very low EMF at treatment distances, making it ideal for circadian rhythm entrainment and recovery.