Bigger Budgets Don't Make a Better Energy Drink. Better Ingredients Do.

Energy & Ingredients October 15, 2026 · 6 min read · Lee Killingsworth
The quick answer

FAMUS approached formulation by asking where an ingredient came from, how it was made, and whether research examined that specific source. That process led us to Suntheanine, a branded form of L-theanine, during roughly 18 months of development.

In 2022, a handful of friends from neighboring corners of the drinks and hospitality world joined forces to do something that made little sense on paper: build an energy drink while competing with companies that had vastly bigger budgets. We had no distribution empire, celebrity on the bottle, or Super Bowl campaign. We had a bootstrapped startup and a hunch that the product itself deserved more attention.

I co-founded FAMUS after more than two decades building consumer brands. I knew we could not outspend the biggest names in the category. I also knew the biggest marketing budget does not necessarily make the best drink.

01 / The formula question

The familiar energy-drink playbook prizes a noticeable caffeine kick, a flavor that sells the first sip, and a price that works at scale. It is an effective business model. But when people turn the package around, they may have different questions: What is in this? Where did it come from? Why was it chosen?

Those questions became the starting point for FAMUS. Instead of working backward from a cost target, we wanted to examine the ingredients first and build the formula around choices we could explain.

02 / The mixer problem

Another question had been bothering me for years behind the bar. People will pay a premium for a carefully made spirit, then mix it with something they have barely considered. Depending on the drink, the mixer can make up most of what is in the glass.

If the ingredients in the bottle deserve scrutiny, why not the ingredients poured alongside them? That thought grew beyond cocktails. It became a way to ask what an energy drink could be if its formulation received the same care as its presentation.

03 / Build backward

We began looking for ingredients we could stand behind, even when a more familiar or cheaper option was available. That choice shaped roughly 18 months of formulation work. Selecting an ingredient meant more than finding a supplier willing to sell it. We wanted to understand the source, the process, the standards, and the evidence.

There is a difference between choosing an ingredient because it looks good on a label and choosing it because it belongs in the drink.

04 / The L-theanine question

L-theanine is an amino acid found naturally in tea. Researchers have studied it on its own and alongside caffeine for possible effects on attention and other outcomes. That made it interesting to us as we considered what people want from energy: sometimes the goal is to feel ready to focus on the task in front of you, rather than simply to go faster.

We could have put a generic L-theanine entry on the formula sheet and stopped there. Many customers would never have asked which source we used. We kept asking.

If the customer does not know the difference, does the difference stop mattering?

We believed the opposite.

05 / Why we chose Suntheanine

Our search led to Suntheanine®, a branded form of L-theanine produced through a patented enzymatic process rather than extracted from tea leaves. Its source and production method were identifiable. More importantly to us, the branded ingredient itself had been used in published human research.

For example, a randomized, double-blind trial in 30 healthy adults studied 200 mg of Suntheanine daily for four weeks and reported changes in several stress-related and cognitive measures. That was a study of the ingredient at a particular dose and schedule, not a test of FAMUS. It does not establish what someone will experience from a bottle of our drink.

That distinction matters. A paper about L-theanine in general is useful background, but it cannot automatically tell us what a finished beverage will do. We wanted to know whether research traced back to the specific ingredient we were buying. Suntheanine gave us a clearer paper trail, which is why it earned a place in our formula.

06 / What a label cannot tell you

An ingredient list can say “L-theanine” without naming the supplier, explaining the manufacturing process, or giving the amount of that ingredient on its own. The name is a starting point, not the whole story.

When we evaluate an ingredient, we ask four questions:

  1. Who makes it?
  2. How is it made?
  3. What quality standard does it meet?
  4. Does the relevant research examine that specific ingredient?

Suntheanine’s named source, documented process, and published research helped us answer those questions. We think explaining why an ingredient is present is part of the maker’s job.

07 / Energy is not always about going faster

An energy drink might be for the gym or a long drive. It might also be for the last demanding hours at a desk. Those are different occasions, and people do not necessarily want the same experience from both.

Caffeine’s role in alertness is well established. Research on pairing caffeine with L-theanine has shown some promising attention results, though findings vary across tasks and studies. It was a reason for us to explore the combination, not a promise that every drinker will feel a particular effect.

08 / Looking premium is the easy part

Making something look premium is straightforward: design beautiful packaging, set a higher price, and tell the world it is extraordinary. Being premium is harder. It lives in decisions most customers never see: the ingredient chosen over a cheaper alternative, the supplier examined more closely, or the formula revised because it did not meet our own standard.

Those invisible decisions are also easy places to cut costs. We do not assume that expensive ingredients automatically make a better drink. But if we ask people to pay more, the care inside the bottle should match the care outside it.

09 / Our homework, not yours

Most people will never research how Suntheanine is made or spend an afternoon reading clinical studies. They should not have to. Asking where an ingredient came from, weighing the evidence, and deciding whether it meets a real standard is our responsibility.

That is why we chose Suntheanine. It is also why we chose coffee berry and elevATP®, each for its own reasons. We will keep explaining those decisions instead of printing a list and asking you to take our word for it.

We started by asking whether a small group of friends could compete with the largest energy-drink companies. The better question became this: What if making a better drink depends less on how much you spend convincing people to buy it and more on how much thought you put into making it?

We are still answering that one, one ingredient at a time.

Key takeaways
  • 01 An ingredient name alone does not tell you its source, manufacturing process, or evidence base.
  • 02 Suntheanine is a branded L-theanine made through a patented enzymatic process.
  • 03 Research on an isolated ingredient is a reason to investigate it, not a guarantee that a finished drink will produce the same effects.
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