369 / Horn Dark Mix / Night Lens
369 / Horn Dark Mix / Night Lens
369 / Horn Dark Mix / Night Lens
369 / Horn Dark Mix / Night Lens
369 / Horn Dark Mix / Night Lens
369 / Horn Dark Mix / Night Lens
369 / Horn Dark Mix / Night Lens
369 / Horn Dark Mix / Night Lens
369 / Horn Dark Mix / Night Lens
369 / Horn Dark Mix / Night Lens
369 / Horn Dark Mix / Night Lens
369 / Horn Dark Mix / Night Lens
369 / Horn Dark Mix / Night Lens
369 / Horn Dark Mix / Night Lens
369 / Horn Dark Mix / Night Lens
369 / Horn Dark Mix / Night Lens
369 / Horn Dark Mix / Night Lens
369 / Horn Dark Mix / Night Lens
369 / Horn Dark Mix / Night Lens
369 / Horn Dark Mix / Night Lens
369 / Horn Dark Mix / Night Lens
369 / Horn Dark Mix / Night Lens

369 / Horn Dark Mix / Night Lens

Blue Light Blocking Glasses

Support natural sleep with blue light filtering lenses in natural buffalo horn frames.
handcrafted buffalo horn
  • For night use to support sleep
  • Blocks 99%+ blue and green light
  • 100% handcrafted natural buffalo horn
  • Premium leather case
  • Free US Shipping
$200
/
In stock

Frame Model 108

Handcrafted from 100% genuine buffalo horn.

Lens width: 50mm

Bridge width: 20mm

Temple length: 145mm

Each frame is unique with natural horn variation.

Color and pattern varies (categorized by light mix, medium mix, or dark mix).

Premium night lens tested to block blue and green light spectrum for optimal circadian rhythm and sleep protection.

Spectrometer tested to block 99%+ of 380-500nm light, the target range to block for ideal sleep.

Night lenses are intended for evening and indoor use only. Not for driving. Wear after sunset, or 1-2 hours before sleep.

Occasionally hydrate the natural horn with a light coat of natural oil or tallow.

Free US shipping and exchanges.

International shipping charged at cost. International exchanges must cover return shipping.

See refund policy.

Artificial light disrupts your sleep.

Restore your natural circadian rhythm by blocking blue light in the evening.

Like your ancestors sitting around the fire.

Designed for night use.

These lenses are designed for evenings - when screens, LEDs, and artificial lighting can keep your brain in “day mode.”

Wear them after sunset to reduce blue and green light exposure and support a smoother wind-down.

These wavelengths trick your brain.

Blue and green light tell your brain it's time to be awake.

In nature, those wavelengths disappear after sunset.

But modern artificial light and screens blast you with them, disrupting sleep signals.

Blue light blocking lenses remove these wavelengths, helping your brain recognize that night has arrived.

Spectrometer tested.

Verified to block the wavelengths of light most disruptive to sleep.

Blocks 99%+ of blue-green light (380-540nm).

A forgotten natural material.

Crafted from genuine buffalo horn, these frames are shaped, polished, and finished by hand - not molded from plastic.

Horn: Nature's Plastic

The earliest known eyewear was crafted from horn or bone - long before modern plastics existed. These materials were chosen for their durability, comfort, and natural feel against the skin.

Unlike synthetic frames, horn is warm to the touch, lightweight for comfort, and strong for a perfect fit.

Every frame is one-of-a-kind from nature with varying coloration, grain, and translucence - no two pairs are ever exactly alike.

The Fit: Frame 369

A squared, bold, modern frame shape with confident presence.

No Two Are Exactly Alike

Natural water buffalo horn is a living material with varying coloration, grain, striations, and translucence.

Each pair carries nature's unique fingerprint.

We categorize by color tone, but variation is to be expected, and where the beauty is.

Horn Mix Light:

Majority light tones from white to beige, from opaque to translucent, with a varying amount of darker coloration.

Horn Mix:

Medium tones dominate, from browns and greys to tans or translucent amber. Often with hits of light or dark contrast.

Horn Mix Dark:

Mostly dark tones, typically near-black, with varying marbling and striations of medium tones or translucence.

  • 5 stars: 8 (89%)
  • 4 stars: 0 (0%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 1 (11%)
Some of the reviews shown are from related products the merchant grouped with this one.
E
Eddie Estévez (United States)

Really helpful for winding down at night! Great design. They’re light and comfortable.

Eddie Estévez review photo
M
Matthew Mendez (United States)

quality is superb, i like the orange tint. it's dark but not too dark. be mindful of the sizing. these are a bit on the smaller side. wish they offered different sizes for same models!

Matthew Mendez review photo
L
Leigh Ann Tatnall (United States)
Absolutely love!

Fast shipping. Rhizal is always responsive. These are just beautiful. High quality. Actually blocks blue light and helps me sleep better.

Leigh Ann Tatnall review photo
A
Adam Headrick (United States)

Bring the soothing light of a campfire glow to each evening...and a better sleep to every night.

N
Nicholson
Protection, and stylish

Enjoying my new blue blockers. They are helpful with screens and the inescapable blue light from LEDs. I find myself wearing them often, as though they are an enhanced version of sunglasses, and have noticed they make overall vision seem more "crisp". I have also received several compliments on them and inquiries as to where they can be purchased.Proper light is critical to health; these glasses offer great protection with designer style.

M
Mookie (United States)

I use the 528's while reading my Ipad in the evening. Great eye relief. Thank you!

M
Mookie (United States)

These 432's are great. I wear them early mornings doing my computer work. Thank you!

J
Jeremy Risner (United States)

Love them!

B
Brian

These are $40 sunglasses...MAX. Quality is no different than your average gas station sunglasses. Super disappointed in these

What is the quality issue? They're genuine buffalo horn. What is the issue that makes these "gas station quality" when boutique brands charge $1000+ for this material? What's the actual issue you're experiencing with these? We've reached out to you - no email or any contact from you other than this vague review. Why not reach out to us for help? Or explain the issue? What is the disappointment exactly? We're here to talk.

FREE US SHIPPING

Ships from San Diego, CA.

FREE SIZE EXCHANGES

Start an easy exchange : info@rhizal.co

RETURN POLICY

See full return policy here.

Frequently Asked Questions

The night lenses are designed specifically for evening use after sunset to prepare for sleep. For daytime computer use, yellow day lenses are coming soon. Night lenses should not be worn while driving.

The warm tint indicates strong reduction of blue and green light wavelengths most associated with circadian disruption. Clear lenses claiming to do this don't work.

Each frame is crafted from natural buffalo horn so coloration, pattern, and translucence varies. We categorize by color tone, but no two frames are exactly alike. Each frame shows off the one-of-a-kind beauty of the natural world.

For any concern around variation, you can verify and approve your exact frame immediately after placing your order by emailing info@rhizal.co

Yes. Buffalo horn is a strong, naturally resilient material that has been used in eyewear and tools for centuries. With basic care, horn frames are designed to last for years and can be maintained over time.

Our frames are made from water buffalo horn - the same animal used widely in leather goods, including our shoe outsoles. The horn is a natural byproduct of the food and leather industries and would otherwise go to waste.

We believe in using the whole animal, minimizing waste, and choosing natural materials over petroleum-based synthetics. For us, honoring the full animal is far better than synthetic pollutants.

Our frames are designed to fit nearly everybody. Some styles are larger or smaller, with exact measurements listed on each product page to help you choose confidently. For blue blockers, "too big" can be perfect for more eye coverage. We offer one free US exchange if a different frame design is preferred. Returns are possible within 30 days for unused items.

Occasionally hydrate the natural horn with a light coat of natural oil or tallow. Horn is made of keratin, like hair or fingernails, and can dry out over time. Occasional hydration will keep them in perfect condition for years to come.

Next: 137 / Horn Mix / Night Lens
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