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More than just an energy drink.

Stem is clean energy, reimagined. Powered by nootropics and adaptogens, it blends natural caffeine from CoffeeBerry™ with L-Theanine for balance—plus Lion’s Mane and Cordyceps to fuel both mind and body, without the crash.

⚡ Crash-Free Energy – Clean, sustained fuel to power your day.

🧠 Sharpened Clarity – Switch on fast and cut through brain fog

🔋 Elevated Performance – Stay sharp, focused, and resilient – anytime, anywhere.

Real focus, real energy, real ingredients.

Testimonials

"Great taste. Good amount of focus, enjoyable."

- Gerard L.

"For a functional drink it tastes really good, pleasant to drink. Mango Pineapple is 🔥"

- James F

"Love knowing there’s Lion’s Mane and real fruit flavour in it. Actually enjoyable to drink."

- Lily A

"I’ve tried a bunch of nootropic drinks this one tastes the best by far and isn’t packed with junk."

- Ben W

"Tastes amazing and still has all the good ingredients I look for. YUM "

- Mia C

"The flavour is clean and crisp, no artificial aftertaste. Smooth kick of energy. Not as intense as other energy drinks but it felt like enough. "

- Nick B
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FAQs

  • Stem is crafted with real ingredients providing a clean, focused energy boost for both the mind and body - without the jitters, crash, or artificial overload found in typical energy drinks.

  • Yes, stem contains 100mg of caffeine derived from Coffee Berry. Providing a smooth, natural lift that is balanced with L-Theanine to avoid overstimulation, making it perfect for those who want energy without the anxious jitters.

  • Yes! Stem contains no added sugars and is lightly sweetened with a natural sweetener - Thaumatin. Giving you a refreshing taste without the sugar crash.

  • Stem is lightly carbonated and gently sweetened. Available in a fresh tropical mango-pineapple flavour and a bold blackcurrant flavour.

  • Yes! Stem is 100% vegan, gluten-free, and made without artificial flavours, colours, or preservatives.

  • Absolutely! Stem is designed to be a clean daily energy solution, whether you need focus at work, a boost before the gym, or just an afternoon pick-me-up.

  • Nootropics are natural compounds that support cognitive function, helping improve mental performance.
    Adaptogens help your body manage stress and stay balanced, promoting sustained energy.

    We’ve combined ingredients like Lion’s Mane, Cordyceps, CoffeeBerry® caffeine and L-Theanine for their nootropic and apoptogenic effects.

  • Stem is best stored in a cool, dry place and kept refrigerated for optimal freshness. Serve chilled and invert the can before opening to evenly mix the natural ingredients no shaking needed.

Blog posts

  1. Read more: Not All Energy is Equal
    Not All Energy is Equal

    Not All Energy is Equal

    Natural Energy vs. Synthetic Stimulation: Why It Feels Different Two drinks. Same caffeine amount. One leaves you feeling focused and steady - the...
    Read more
  2. Read more: How to Stay Sharp Without the Slump
    How to Stay Sharp Without the Slump

    How to Stay Sharp Without the Slump

    The Crash Is Real We’ve all been there: you down an energy drink or strong coffee, feel a jolt of productivity... then crash. That dreaded slump is...
    Read more
  3. Read more: Nootropics & Adaptogens: What They Are and Why They Matter
    Nootropics & Adaptogens: What They Are and Why They Matter

    Nootropics & Adaptogens: What They Are and Why They Matter

    Discover how nootropics and adaptogens work together to power STEM. With ingredients like lion’s mane, cordyceps, L-theanine, and natural caffeine from Coffeberry, STEM delivers clean, focused energy - without the crash.

    Read more