Welcome to Killers Phase One
You're one of only 50 people with access to Battle Syrup before public release.
What you're holding is an early prototype shared privately as part of Phase One.
Before anything is finalised, we want to see how it performs in the real world.
Your role is to help us find out.
A Message From The Founder
What We Ask Of You
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Pay attention to your experience throughout the testing period.
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Share honest feedback, whether positive, negative, or somewhere in between.
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Complete any follow-ups sent during or after testing.
Confidentiality
Everything shared throughout Phase One should remain within the programme.
You applied, were selected, and earned access to something unavailable to everyone else.
Let's keep it that way.
Inside Battle Syrup
Every ingredient in Battle Syrup is here for a reason. Tap an ingredient to explore it.
Cognizin® Citicoline
The Problem
Attention has become a scarce resource. Most people spend their day switching between tabs, notifications, messages, meetings, emails, and an endless stream of information competing for their focus. The result isn't usually a lack of stimulation. It's a lack of sustained attention. Coffee can help you feel awake. Staying focused on the thing that actually matters is a different challenge.
Why It's Here
Cognizin® Citicoline was included to support attention, concentration, and cognitive performance as part of a productive coffee ritual. Being alert is useful. Being able to direct that attention where it matters is even more valuable.
What Research Shows
Cognizin® is one of the most extensively studied forms of citicoline. Clinical studies have investigated its effects on attention, focus, memory, and cognitive performance, with improvements reported in measures of attention, memory, and cognitive function compared with placebo.
L-Theanine
The Problem
Ever finished a coffee feeling more stimulated than productive? More switched on than focused? Coffee can be powerful, but for some people it comes with a trade-off: jitters, overstimulation, and the feeling that your brain is moving faster than your ability to direct it.
Why It's Here
L-Theanine was included to help create a smoother, more controlled coffee experience. The goal wasn't to make coffee feel stronger. It was to make it easier to direct.
What Research Shows
Research investigating L-Theanine alongside caffeine has reported improvements in attention and reductions in susceptibility to distraction compared with caffeine alone.
Electrolytes
The Problem
Most people blame caffeine. Almost nobody considers hydration. If you've ever found yourself on your third or fourth coffee of the day, deep into work, wondering why your energy or focus feels less reliable than it did that morning, there are usually more variables involved than caffeine alone.
Why They're Here
Magnesium, sodium, and potassium were included to support hydration, electrolyte balance, and the foundational systems that often get overlooked. They're not the most exciting ingredients in the formula. They're some of the most important.
What Research Shows
Magnesium contributes to electrolyte balance and normal nervous system function, while potassium contributes to normal muscle and nervous system function. These systems influence everything from hydration status to physical and cognitive performance.
B Vitamins
The Problem
The goal isn't simply to feel switched on. It's to stay switched on. Most people know the feeling of starting the day sharp, only to find themselves reaching for another coffee a few hours later because the momentum didn't last.
Why They're Here
B vitamins were included to support the processes involved in energy metabolism and everyday performance. The goal wasn't simply to create a stronger start to the day. It was to support consistency throughout it.
What Research Shows
Several B vitamins contribute to normal energy-yielding metabolism, normal psychological function, and the reduction of tiredness and fatigue. They play an important role in the processes responsible for converting food into usable energy.
Taste & Sweetening
The Problem
Most functional products ask people to make a trade-off. Better ingredients. Worse experience. The result is often a product that gets used for a week, then slowly disappears into the back of a cupboard.
Our Approach
We didn't believe performance and enjoyment should be mutually exclusive. That's why Battle Syrup was developed around a caramel profile with subtle salted caramel notes, while avoiding artificial sweeteners in favour of a natural approach. The best formulations are the ones people actually want to use.
Why It Matters
Consistency compounds. The products that make the biggest impact are the ones people continue using long enough for the benefits to compound. By leading with taste, our aim was to make Battle Syrup easy to use consistently, so you get the most from it.
How To Use Battle Syrup
Phase One isn't about finding the perfect routine. It's about consistency.
Over the next 7 days, use Battle Syrup as part of your normal coffee ritual.
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Shake well before use.
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Add 3 pumps to your first coffee of the day.
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Stir thoroughly.
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Drink as normal.
Please Note:
One bottle provides approximately one week's use, at 3 pumps in your first coffee of the day.
For the most useful feedback, we recommend keeping to 3 pumps in your first coffee each day throughout the testing period, so your experience stays consistent from day to day.
The pump head is supplied separately. Screw it onto the bottle, twist the top to unlock it, then pump a few times before first use.
Travelling with your bottle? On your final pump, hold the pump head pressed all the way down and twist it clockwise to lock it in place. Then wipe the nozzle to clear any residue, so nothing leaks or makes a mess in transit.
Feedback + Follow-Ups
Without your feedback, Phase One doesn't work.
We'll check in via WhatsApp throughout testing and ask for feedback along the way.
Honest feedback is more valuable than positive feedback.
When You've Finished Testing
You've completed the testing period. Now tell us what happened.
Complete Phase One FeedbackYour feedback will directly influence the final product.
Beyond Phase One
The most insightful participants may be invited to discuss their experience on a short Zoom call.
Some things are explained best in conversation.
Phase One is where the conversation starts.
FAQ
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For the most useful feedback, we recommend using Battle Syrup consistently throughout the seven-day testing period as part of your normal coffee routine.
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Don't worry. Simply continue the programme as normal and include any relevant details when providing feedback.
Phase One is designed to understand real-world use, not perfect use.
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Yes. Battle Syrup can be used with hot or iced coffee. The preparation method matters less than using it consistently.
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We recommend 3 pumps in your first coffee to establish a consistent baseline.
You're also welcome to use Battle Syrup in more than one coffee if that's how you'd naturally use it. If you do, we'd love to hear how you used it and how it influenced your experience.
The goal of Phase One isn't to follow a rigid protocol. It's to understand how Battle Syrup performs as part of your normal coffee routine.
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That's useful information too. Not every observation needs to be dramatic to be valuable.
If something didn't change, we'd still like to hear about it. Honest feedback is always more useful than expected feedback.
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Once your testing period is complete, you'll be invited to submit your final feedback. The most engaged participants may also be invited to contribute additional feedback, participate in future testing opportunities, or receive early access to future releases.
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Please wait until you've completed your testing period before submitting your final feedback. We'll also check in via WhatsApp during testing, so feel free to share observations along the way.
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If you need help during Phase One, reply to any of our emails or reach out via WhatsApp and we'll do our best to help.
Thank you for being part of Phase One.