The research behind the NeuroSafe™ Light
Seven independent studies, published in peer-reviewed journals, behind the wavelength science the NeuroSafe™ Light is built on, and why it doesn't interfere with your baby's sleep.
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Thomas Jefferson University · 2001
Action spectrum for melatonin regulation in humans
The first complete map of which wavelengths suppress melatonin. Peak sensitivity: 480nm, the blue light of an ordinary lamp.
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Harvard Medical School · 2003
Harvard measures which wavelength destroys melatonin
460nm blue light suppresses twice as much melatonin as green light of the same intensity. Long-wavelength red light: practically inert.
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University of Surrey · 2001
Red wavelengths barely suppress melatonin
An independent replication of Brainard's work, out of the UK. Same-year confirmation: 660nm red light doesn't switch on the circadian system.
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Brown University · 2002
The eye has a third type of cell
The discovery of ipRGCs: photoreceptors, separate from rods and cones, that calibrate the body clock directly.
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Yale University · 2003
A baby's body clock responds to light from the very first weeks
A baby's circadian system is far more sensitive than an adult's, and it starts working earlier than most parents realize.
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Northwestern University · 2022
A single night of light during sleep has consequences
One night under 100 lux during sleep raises heart rate and insulin resistance the next day, even without waking the sleeper.
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University of Colorado Boulder · 2013
Without artificial light, the body clock resyncs on its own
A week of camping with no artificial light shifts the body clock two hours earlier. Electric light pushes our rhythm out of step with the natural solar cycle.
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The institutions cited refer to independent academic research published in scientific journals. This does not imply any commercial relationship or endorsement by ZZ Labs.
Meet the light that puts this research to work.
See the NeuroSafe™ LightFree shipping · Works from the first night