
About
We built Kronveil because most blue light glasses were designed around the wrong problem.
The science on circadian disruption is clear. Blue and green light (400–520nm) suppresses melatonin, raises cortisol, and keeps your brain activated when it should be winding down.
The products on the market weren't keeping up. Most filtered a narrow band of blue light — enough to make a claim, not enough to make a difference.
We built the X0-1 around the full spectrum. Premium optics. Mazzucchelli acetate frames. 17 grams. And lenses that actually do what they're supposed to do.

Protection
99% of the spectrum that disrupts your sleep, filtered at the source.
Precision
CR-39 optical polymer, Mazzucchelli acetate, independently lab-tested.
Restraint
No unnecessary features. No inflated claims. No compromise.