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Frequently Asked Questions


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!

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.

Carbonshade glasses are not a direct cure for headaches, however if your headaches are sleep related or LED light related, then you may benefit from this product. Shop Carbonshades.

Glasses and Wear

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!

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.

Shipping & Returns

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.

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.

We ship internationally and try our best to avoid incurring customs fees, but some countries can hold packages until a fee is paid. We cannot control this and you should expect this is possible, although it will be similar for any product you order internationally. Some orders have been delayed by a couple weeks due to COVID related delays by shipping companies.


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.

Take at our Technology page. We cover a lot of the technology and science of blue light and how our Carbonshade glasses can help you.