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Rated Excellent by Beta Testers*
Coffee Booster Enriched With L-Theanine For Calm Focus & Crash-Free Energy
Upgrade your favourite coffee with a rich vanilla-flavoured coffee booster infused with L-Theanine, proven to reduce caffeine's mental fog, jitters and crash, giving you sharper focus and balanced, lasting energy. Don't change your coffee. Just add the booster enriched only with natural ingredients proven to work with caffeine. Free from sugars, artificial sweeteners & preservatives.
149,00 zł
Sale price
149,00 zł
Regular price
Science-Backed Benefits of L-Theanine + Caffeine
We love coffee, but not its side effects. Especially since many of us are already tired, dehydrated and rely on caffeine for an energy boost.
Your favourite coffee is a stimulant, but it doesn't really give you energy; it blocks the feeling of being tired. It can also overstimulate your system if you're sensitive, leading to jitters, restlessness, or even a sudden afternoon crash.
When you add L-Theanine to your coffee, they work together to "smooth out" the harsher effects of caffeine, providing calm, focus, and steady energy.
Science confirms that the unique pairing effect gives you:
- Sharper attention and alertness compared to just caffeine, especially if you lack sleep (Harvard study)
- Improved concentration by reducing the mental fog, helping your productivity
- Reduced caffeine jitters and smooth energy without the crash for a more balanced coffee experience
Read the Science section for more details.
Upgrade your coffee with a precise, GMP-compliant complex featuring L-Theanine, Rhodiola Rosea and Vitamin B12 for steady, crash-free energy.
Ingredients
L-Theanine supports calm, focused, and steady energy by helping smooth the stimulating effects of caffeine, without the jitters or crash.
Rhodiola Rosea is a clinically studied adaptogen traditionally used to help reduce fatigue, mental exhaustion, and stress while supporting mental performance and resilience.
Vitamin B12 contributes to the reduction of tiredness and fatigue.
Each component is carefully selected for its role, supporting focus, reducing mental fatigue, and promoting calm, sustained performance within a structured daily routine.
Nutritional Information Per Scoop (6 g)
Energy: 13 kJ / 3 kcal
Fat: 0 g
Carbohydrate: <0.1 g
Sugars: 0 g
Fibre: 0 g
Protein: 0 g
Salt: <0.01 g
Pharmaceutical Standards: Our complex is manufactured in GMP-compliant facilities and undergoes rigorous testing to ensure you get the exact focus-boosting power promised on the label
It's so easy! Just add it to your favourite coffee or to a glass of water, and drink it with your coffee for even better hydration.
We ship orders up to 48 hours (usually up to 24 hours). We send parcels to Parcel Lockers and by InPost courier.
An unopened product can be returned within 14 days without giving any reason.
Don't Change Your Favourite Coffee, Just Boost It
Our mission is to bridge your coffee culture with functional nutrition to give you a smoother coffee experience that boosts your well-being, without changing your coffee's taste.
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Upgrade Your Morning Coffee To Elevate Your Day With Steady Energy And Calm Focus.
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More Health Benefits Without Sugars
Don't change your coffee. Just take your coffee ritual to the next level.
- Science-based cognitive benefits from the unique pairing of the L-Theanine complex stabilising caffeine for steady focus
- Reduced fatigue from the combination of Rhodiola Rosea and Vitamin B-12.
- Together, they support a state where you can stay sharp and consistent all day.
Is This For You?
- You want more health benefits out of your morning coffee, but without changing its taste
- You lack sleep, you're exhausted, tired and rely on coffee and supplements for stimulus.
- You want to stay focused and sharp during long workdays or demanding projects
- You feel mentally drained or overstimulated, seeking mental clarity
- You are a student tackling long study sessions
- You are prone to coffee-related anxiety or crashes
Built for coffee lovers who want to upgrade their latte, cappuccino, and espresso into a science-backed functional beverage without altering the taste of their favourite brew.
Formula Based on Clinical Research
Designed so each ingredient supports a calm and focus state all day long.
| Ingredient | Amount Per Scoop | Role in Calm & Focused State |
|---|---|---|
| L-Theanine | 200 mg | Amino acid naturally found in tea. Science-backed calm alertness and steady energy by helping smooth the stimulating effects of caffeine, without the jitters or crash. We only use extracts from green tea, not synthetic. |
| Rhodiola rosea | 150 mg | Clinically-studied adaptogen shown to effectively reduce fatigue, mental exhaustion, and stress while supporting mental performance and resilience |
| Vitamin B12 | 250 µg | Contributes to the reduction of tiredness and fatigue and cellular energy support (10,000% NRV*) |
Manufactured in an FDA-registered and inspected facility. Designed for consistency, quality, and everyday use.
Science-Backed Effectiveness
Science is the guiding principle of Brain Nutrition. Below you will find some scientific articles that also served as the basis for the development of our functional nutrition.
The combination of L-Theanine with Caffeine improved both speed and accuracy of selective attention in sleep-deprived individuals, particularly in traffic-related tasks.
Clinical evidence suggests that Rhodiola rosea may help reduce fatigue, stress-related symptoms, burnout, and mental performance decline under stress.
Frequently Asked Questions
Our product is designed to enhance cognitive performance, improve focus, and support overall brain health with scientifically-backed ingredients.
We typically process orders within 1-2 business days. Shipping times vary by location but usually take 3-7 business days.
Yes, we offer a 30-day money-back guarantee. If you're not satisfied with your purchase, contact us for a full refund.
Take one sachet daily with water, preferably in the morning. For best results, use consistently for at least 30 days.
Our product is made with natural ingredients and is generally well-tolerated. However, consult your healthcare provider if you have any concerns.
Yes, our product can be taken alongside most other supplements. However, we recommend consulting with a healthcare professional first.
Yes, we ship to most countries in the EU and UK. Shipping costs and delivery times vary by destination.
We accept returns within 30 days of purchase. Products must be unopened and in original condition for a full refund.