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Our FAQs

Better Sleep. Better Focus. Better You.

Frequently Asked Questions


Why red?

Turns out, red is the best color for blocking the light that inhibits sleep. That's because it's not just blue light that interferes with our circadian rhythm, as the term 'blue-blockers' would suggest – it's also green light. Specifically, it's light in the melanotic action spectrum of 400-570nm. For more information check out our Technology page for more details on how Carbonshade can help you!

How do they help you get better sleep?

A healthy sleep cycle is vital to the immune system.Blue light suppresses melatonin in the brain and keeps the body awake. Carbonshade blocks 99.8% of all harmful blue light. This allows your sleep cycle or circadian rhythm to adjust and can positively impact sleep-related grogginess or headaches, and dieting. Please see our Technology page for more details on how Carbonshade protects you from blue light.

When should I put these on?

These glasses do their best when worn 3-4 hours before bed time. They are intended for indoor-nighttime use only, where they will have the greatest impact.

Do they relieve headaches?

Carbonshade glasses are not a direct cure for headaches, however if your headaches are sleep related, then they may benefit from this product.

Are these safe for night driving?

These glasses block out all blue and green light, and are not safe for driving please restrict all use to indoor only.


How does it work?
Check out our Technology page.

Do I need these if I already have F.Lux, nightmode, smart bulbs, computer glasses, etc?

Carbonshade covers areas where other products cannot. wearing these glasses will protect you from LED from TV's and lights as well, not just laptops and smartphones. The red shades block out 99.8% of the spectrum of blue and green light in the melanopic spectrum that affect the brain, we are the most beneficial, technologically sound option to protect you from blue light.

F.Lux and Night Mode only reduce the amount of blue light shown on a screen, only filtering out 50% of harmful light. (that's 250 times more light that we could protect you from) The F.Lux founder himself, Michael Herf, reviewed Carbonshades and said they were the best blue light blocking option on the market, buy Carbonshades.

Why >99.8%?

So you know it isn't 97% or 51%  being rounded to 100%. 99% might be enough, but better safe than sorry when it comes to your health. **

Glasses and Wear

Do you have prescription glasses?
Unfortunately we do not currently offer prescription or reading lenses, however they are certainly on our radar. Please let us know via social media or email, and subscribe to our mailing list so we can let you know if we release them!

Are these fit over glasses?

We are looking into fit-over glasses and clip-ons as potential future products. If you are interested, please let us know via social media or email, and subscribe to our mailing list so we can let you know if we release them!

Can I wear these with contact lenses?

Definitely! Wearing contacts will not inhibit the lenses from doing what they do best, blocking out red light.

Are they lightweight or heavy?

Our frames are light weight. Classics weigh 27 grams and The Clubmaster weighs 28 grams. These glasses are built to last and have and nice weighted balance.

Do you have any more sizes?

We are currently developing more sizes, however the current frames fit most if not all of our customers.

Shipping and Returns

What is your return policy?
We have a 100% Satisfaction Guaranteed return policy that lasts for one (1) year from the date of purchase. Contact us at if you would like to request a return or exchange.

How do you ship? 
We ship all of our orders from the United States with USPS First Class or Priority Mail to ensure they arrive in as timely a manner as possible. For most orders, we will dispatch your package within one business days of receiving order confirmation, after which it will take 1-3 days to arrive at most US addresses and 3-12 days to arrive at most international addresses.

I live internationally – will I need to pay customs? 
We try our best to avoid incurring customs fees, but occasionally local post offices can hold packages until a fee is paid (particularly in Europe). If this happens to you, just let us know and we'll take care of it!


I have an audience that would be interested in your products. Do you have an affiliate program?

Yes, contact for details.


Do you have any discount codes?
Follow us on Facebook, Twitter, and Instagram (@carbonshade) and we might surprise you :)


I want to place a large order for my sports team, company, military operatives, or retail location. Do you have wholesale options?
Yes, contact for details.