sterling silver caffeine earrings, inspired by the caffeine molecule
sterling silver caffeine earrings shown as a pair, inspired by the caffeine molecule
Back to all products

caffeine earrings

silver
|

€ 160

Earn 160 Science club points

Notify me when back in stock

Something went wrong

You are now subscribed

  • Free cleaning cloth included

  • Delivered in 1 - 5 days

  • Free worldwide shipping with DHL Express

  • 30-day return policy

  • American Express
  • Apple Pay
  • Bancontact
  • Google Pay
  • iDEAL Wero
  • Klarna
  • Maestro
  • Mastercard
  • MobilePay
  • PayPal
  • Shop Pay
  • Union Pay
  • Visa

Still questions? Contact us

Caffeine earrings | sterling silver

Caffeine is 1,3,7-trimethylxanthine, three methyl groups on a purine backbone. Six cups of coffee, a triple espresso, or steady focus without the jittery spike. The molecule that powers labs and lectures, worn here as a 14 mm sterling silver hoop for anyone who knows what they depend on.

The Science Behind Caffeine

Caffeine is a methylxanthine alkaloid, first isolated by Friedlieb Ferdinand Runge in Goethe's lab in 1819. It works by antagonizing adenosine receptors, primarily A1 and A2A, blocking the sleep-promoting effects of accumulated adenosine. Peak plasma concentration arrives within 30 to 60 minutes of ingestion, with an average half-life of 5 hours, though genetic variation in the CYP1A2 enzyme determines whether you are a fast or slow metabolizer. Approximately 80 percent of the global adult population consumes caffeine daily, making it the most used psychoactive substance worldwide.

Who Will Recognise It

  • biochemists and pharmacologists who teach receptor antagonism through this molecule
  • shift workers and night-shift nurses for whom this structure is a necessity
  • researchers who have pulled consecutive all-nighters at the bench
  • anyone who has sketched the purine backbone and knows the three methyl groups define the pharmacology

For someone who knows the half-life, the A2A antagonism, and why 4 pm is too late to reach for the cup.

Explore Related Molecules Jewelry

FAQ

How does caffeine work in the brain?

Caffeine blocks adenosine receptors, preventing adenosine from signalling tiredness to the brain. Adenosine accumulates throughout the day as a byproduct of metabolism, and its binding to A1 and A2A receptors tells your brain it is time to sleep. Caffeine competes for those receptors, delaying sleep onset and keeping you alert. The effect peaks around 30 to 60 minutes after consumption and wears off when your liver metabolizes it, which takes 5 hours on average (though CYP1A2 genetics determine whether you are fast or slow).

What is the chemical structure of caffeine?

Caffeine is a methylxanthine alkaloid with the molecular formula C8H10N4O2. It sits on a purine ring with three methyl groups attached at positions 1, 3, and 7. Those three methyls define the molecule's pharmacology. Remove one methyl and you have theobromine (the active alkaloid in chocolate). This specific arrangement of three methyls on the purine backbone is what blocks adenosine receptors.

What are the size, material and finding specs?

925 sterling silver, a 14 mm molecule on 17.5 mm sterling silver hoops. Nickel-free and hypoallergenic. Free worldwide DHL Express in 1-5 business days, with all import duties and taxes covered. 30-day “Love It or Return It” returns.

Are these earrings available in other materials?

Yes. The same caffeine earrings come in 18K gold vermeil at the same 14 mm size on the same 17.5 mm hoops. Choose the finish the recipient already wears. Both versions carry the same design and the same meaning.

Molecules

Delve into the hidden elegance of science with our meticulously crafted jewelry, inspired by the intricate structures of chemical molecules. Each piece serves as a tactile tribute to the building blocks of life and matter, capturing the allure of atoms and bonds in precious metals. A harmonious fusion of art and science, these creations are more than mere accessories; they're a celebration of the enigmatic beauty that underpins our universe.

More Molecules