What is blue light?

Blue light is the part of the light spectrum that we see as the color blue. It has been linked to many health issues such as increased blood sugar levels, diabetes, obesity, insomnia, eye strain and more. Exposure to light at night is the reason many people don't get enough sleep according to Stephen Lockley, who is a sleep researcher at Harvard University. (1)

Why blue-blocking glasses?

Blue light from the sun is healthy and provides the naturally balanced, full spectrum, whereas digital devices and light bulbs emit a distorted spectrum of light - high in blue and green and deficient in the healing red and infrared light.

As a result, it is important to spend daily time outdoors to absorb the natural blue light, along with the other colors, and block your exposure to artificial blue light, both day and at night.

When to wear daylight lenses?

Wear Daylight Lenses to block harmful blue light from fluorescent bulbs, LED’s, and screens during the day, whether at school, at work, or at home.

Born of Science

Light controls our circadian rhythm, the 24-hour cycle that synchronizes our internal environment with our external environment, controlling our sleeping and waking, metabolic activity, hunger, thirst, growth, and the production and secretion of all key hormones and neurotransmitters.

Our aim is to make products that make it easy for everyone to benefit from the Science of Light.

Guided by Experts

"I, Dr. Alexander Wunsch, have worked as a researcher and physician for the past 35 years, studying the effects of light on human biology, and using advanced light therapy applications to treat a wide variety of health conditions with tremendous success.

I now work directly with Ra to ideate and develop the most useful and effective light-based products, based on my deep experience in this field, and on the most advanced scientific research available today."

- Dr. Alexander Wunsch

When to wear sunset lenses?

Wear Sunset Lenses from sunset to sleep to block sleep-disrupting blue light, re-align your body’s rhythm with nature, and get the best sleep of your life.

When to wear sunset lenses?

Wear Sunset Lenses from sunset to sleep to block sleep-disrupting blue light, re-align your body’s rhythm with nature, and get the best sleep of your life.