Blue-Blocker Glasses — Evening
Amber glasses that block 470–500 nm in the last 90 minutes before bed preserve evening melatonin when room lighting cannot be dimmed.
Wear amber-tinted glasses that block 470–500 nm wavelengths during the last 90 minutes before bed to preserve evening melatonin when room lighting cannot be dimmed. It is cheaper and less disruptive than rewiring every light, useful when you are working late.
The protocol
- Spec: glasses that block 470–500 nm.
- Timing: last 90 min before bed.
- Frequency: as needed when bright evening light is unavoidable.
What you get
- Preserved evening melatonin.
- Easier sleep onset.
Contraindications
- None — well-tolerated.
Evidence level
Medium. There is reasonable supporting evidence that blocking short-wavelength light in the evening protects melatonin and supports sleep onset; results vary by lens quality and individual.
Related protocols
Sources
AgeGen never invents studies and never recommends prescription drugs by brand. Biohacks are experiments, not prescriptions — honour the contraindications and talk to a clinician if a condition above applies to you.