Caffeine + Brain Heat Change Mega Mug
When the mug is cold, you'll see how your brain looks before the infusion of caffeine. As you fill it up and the mug warms, the design changes to show your wide-awake, post-caffeine brain.



Volume | 20 oz |
Care | Hand wash, Do not microwave |
Material | Ceramic |
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USA
Flat Rate $9.95
Orders $75+ ship for free
Expedited service available
International
Shipping is available to most countries. See details at checkout.
If you're shipping to Europe, please check out our EU website for lower shipping rates and quicker delivery times.
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Frequently Asked Questions
Peer Reviews
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Gift
It was a gift for my partner who enjoys coffee and experiments with it. He would if the mug size was a bit smaller. But he loves the reaction mug.

Friend loved it!
She is a tea drinker and this was her graduation gift. She loves the heat mug!!
Caffeine + Brain Heat Change Mega Mug
MY MOM IS A NURSE I GAVE IT TO HER FOR CHRISMASS SHE LOVED IT
Caffeine + Brain Heat Change Mega Mug
Beautiful looking mug, arrived very quickly. I'm hoping my stepdad likes it for his birthday gift.
Caffeine + Brain Heat Change Mega Mug
This was exactly what I expected and I love it. It was shipped quickly and came packaged really well.
Caffeine + Brain Heat Change Mega Mug
This mug is really cool! I got it as a gift, but am definitely getting myself one soon. It is packaged really well and is high quality. So happy with this purchase!
Caffeine + Brain Heat Change Mega Mug
Thank you for the fast service in replacing a broken handle! It arrived intact!
Caffeine + Brain Heat Change Mega Mug
The mug is great as a gift, thank you!