Clean Caffeine from Whole-Leaf Green Tea

Natural energy without the jitters or crash

Where Our Caffeine Comes From

Our caffeine comes from organically grown whole-leaf green tea, harvested at peak freshness to preserve natural antioxidants and nutrients.

Why It's Cleaner Than Coffee

Caffeine from organic green tea, naturally occurring L-theanine, zero sugar, and no synthetic additives or artificial ingredients.

No Jitters. No Crash.

L-theanine slows caffeine absorption for smooth, sustained energy. It promotes calm focus and mental clarity while preventing energy crashes.
A pouch of Kubotea Reishi Breakfast Tea stands on a wooden table next to a teal mug with a floral pattern, with hot water being poured into the mug. A person wearing a brown top is blurred in the background, with a green plant leaf visible on the right.

Clean caffeine

YOUR TEA JUST GOT A WAKE-UP CALL.

We love tea. We just wanted it to work a little harder. Kubo combines organic tea with caffeine derived from organic green tea to deliver 140–155mg of caffeine per serving.

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The Kubo Difference

See how Kubo Tea compares to traditional beverages for daily focus and sustained energy.

Traditional Tea

Traditional Tea

  • Lower Caffeine
  • Gentle Boost
  • Tea Flavor
Coffee

Coffee

  • High Energy
  • Bold Kick
  • Coffee Flavor
Best Choice
Kubo Tea

Kubo Tea

  • 140-155mg Caffeine
  • Tea + Clean Energy
  • Organic Tea Taste