Our Ingredients, Explained

At CERO, every ingredient has a purpose.
Nothing unnecessary. Nothing overstimulating.
Just a clean, functional formula designed to support focus, energy, and clarity without compromise.

We don’t believe in hiding behind vague blends or exaggerated claims. Below, you’ll find exactly what we use, why we use it, and how everything works together.


Water (Lightly Carbonated)

Water is the foundation of everything.
We use purified water with a light carbonation to create a refreshing, crisp mouthfeel that’s easy to drink, whether you’re training, working, or on the move.

Hydration supports both physical performance and mental focus, making it the perfect base for clean energy.


Natural Caffeine (80 mg)

Caffeine is one of the most researched performance ingredients in the world.
We use a moderate dose enough to increase alertness, reaction time, and concentration, without overwhelming your system.

Instead of pushing extremes, we focus on sustained energy that fits into your day not spikes, not crashes.


L-Theanine (60 mg)

L-Theanine is an amino acid commonly found in tea leaves.
Its role is simple but powerful: it smooths the effect of caffeine.

By combining caffeine with L-Theanine, the stimulation feels calmer, more focused, and more controlled often described as clear energy rather than nervous energy.


Natural Fruit Flavours

Blueberry • Blackcurrant • Hibiscus

We use natural fruit flavours to give CERO its subtle, refreshing taste without sugar or artificial sweetness.

  • Blueberry brings softness and balance

  • Blackcurrant adds depth and freshness

  • Hibiscus provides a light, crisp acidity

The result is a clean flavour profile that never overpowers and stays easy to drink.


Citric Acid

Citric acid is used to balance flavour and enhance freshness.
It keeps the drink crisp, bright, and refreshing, while also helping maintain product stability without adding calories or sugar.


Zero Sugar. Zero Calories.

CERO contains no sugar and no calories.
We don’t mask flavours with sweetness or rely on sugar for energy.
Everything you feel comes from the functional ingredients not a crash waiting to happen.


Why It Works Better Together

CERO isn’t about one “hero” ingredient.
It’s about balance.

  • Caffeine provides alertness

  • L-Theanine creates calm focus

  • Water supports hydration

  • Light carbonation improves drinkability

  • Natural flavours keep it clean and refreshing

Together, they deliver energy without overstimulation, focus without tension, and clarity without compromise.


Built for Everyday Performance

Whether you’re training, working, creating, or simply need to stay sharp CERO is designed to fit seamlessly into your routine.

No excess. No shortcuts.
Just thoughtful ingredients, working in harmony.

CERO. energy, done right.