Yes. Our yellow lenses block 100 percent of harmful blue light, especially the spike at 455 nanometers from screens and LED bulbs. Our orange lenses go further by also blocking green light up to 550 nanometers.

Our BioSpectral lenses are designed to protect your brain, eyes, and sleep by optimizing light exposure throughout the day and night. Use them based on the time of day and your environment:

Yellow Lenses (Daytime Artificial Light Exposure)

Wear during daylight hours indoors when exposed to artificial light sources such as:

• Screens (phones, computers, tablets)
• Overhead LED lights
• Fluorescent or cool white lighting
• Screen-heavy environments like offices, schools, or airports

Yellow lenses block 100 percent of the most melatonin-suppressive blue light between 435 and 465 nanometers, supporting focus, mood, and natural energy.

Orange/Red Lenses (After Sunset Use)

Wear after the sun sets or when the blue hue fades from the sky. These lenses are designed for:

• Evenings at home
• Watching TV
• Working on screens after dark
• Using LED lighting in the evening

They block 100 percent of both blue and green light up to 550 nanometers, which are the primary wavelengths that suppress melatonin and overstimulate your nervous system at night.

This helps you:

• Fall asleep faster
• Enter deeper, restorative sleep
• Protect your endocrine system and mitochondrial health
• Enhance overnight healing and hormone regulation

Tip for new users: If you're new to blue light lenses, begin by wearing yellow lenses during the day and night for 1 to 2 weeks to help your visual system adjust before using red/orange lenses at night.

We do not recommend wearing our lenses outdoors in natural daylight. Your eyes need full-spectrum sunlight to regulate hormones, support healthy vision, and maintain circadian alignment. Our lenses are specifically designed for use in artificial light environments. If you already spend a lot of time outside and want to enhance natural red light therapy, you may choose to wear the orange lenses outdoors for short sessions of 10 to 20 minutes. However, as a general rule, you should avoid filtering the full spectrum of natural sunlight, as it provides essential signals for overall health.

Most clear or lightly tinted “blue light blockers” only filter light up to around 430 nanometers, missing the most biologically disruptive part of the spectrum. Even many yellow lenses on the market only block up to 450 nanometers, allowing key portions of the blue light hazard to reach your eyes.

BioSpectral lenses are infused with natural melanin — the same pigment found in your eyes and brain — and are engineered to block the precise wavelengths shown to suppress melatonin and disrupt circadian rhythms. Our yellow lenses block 100 percent of harmful blue light between 435 and 465 nanometers, including the intense 455 nanometer spike common in modern LED and screen lighting. Our orange lenses go further, blocking blue and green light up to 550 nanometers for full nighttime protection.

Yes. We offer single vision, reader, and prescription lenses. For progressive prescriptions, custom measurements from your optometrist are required. Contact our team for assistance.

We recommend wearing yellow lenses daily for at least two weeks to allow your eyes and brain to adjust. Once comfortable, transition to orange lenses after sunset for deeper circadian and melatonin support.

Use the provided microfiber cloth. Avoid abrasive materials or household cleaners. Only use optical lens cleaner or water.

Yes, you can. Yellow lenses block 100 percent of the most biologically disruptive blue light wavelengths—particularly those responsible for melatonin suppression and melanopsin activation—making them a strong option for occasional nighttime use.

Many customers start by wearing yellow lenses at night for a couple of weeks while their visual system adjusts, before transitioning to orange lenses for full nighttime protection. Yellow lenses are especially helpful in social settings after sunset, as they still allow you to see colors like aqua, green, yellow, orange, and red while significantly reducing circadian disruption. However, if you're regularly exposed to screens, LED lights, or indoor lighting after the sun goes down, we recommend using orange lenses. These block both blue and green light up to 550 nanometers, offering your body the clearest signal that it's time to wind down, regenerate, and prepare for deep, restorative sleep.

Some users who are accustomed to wearing the lenses choose to use yellow daytime lenses when driving at night to reduce glare from high-intensity LED headlights. However, this is a personal decision and should be made with caution. BioSpectral Systems does not make safety claims or recommendations regarding driving use. Always prioritize your visual clarity and road safety.