Building a Sports Nutrition Brand Twice: What I Learned From Rivalus to Headstrong | Darren Burke

Darren Burke is a scientist and entrepreneur who has built sports nutrition companies across two different eras of the industry.

In 2008, I helped build my first sports nutrition company.

At the time, I was a scientist studying human performance and exercise physiology. I understood metabolism, training adaptation, and how nutrition influenced recovery. What I did not understand nearly as well was how products actually get built, manufactured, distributed, and trusted by athletes.

Like many scientists entering industry, I believed that if the science was strong, the product would naturally succeed.

Reality is more complicated than that.

Nearly two decades later I am building another sports nutrition company, Headstrong, and the difference in how I approach it today is enormous.

Not because the science has changed.
But because my understanding of business, athletes, and product development has.

The First Time: Building Rivalus in 2008

When we launched Rivalus, the sports nutrition industry was very different.

Social media barely existed. Athletes were promoted primarily through magazines and events. Most companies focused on building large product lines and chasing trends in ingredients.

From my academic background, I approached things through a scientific lens. I was interested in how physiology worked and how supplementation could support training adaptation.

That part was helpful.

But there were many things I simply did not understand yet.

I did not fully appreciate how important manufacturing relationships were. I did not understand the complexity of scaling supply chains. I underestimated how much trust athletes place in brands that consistently deliver quality products.

Most importantly, I had not yet learned that building a successful product company is less about theory and more about execution.

Those lessons only come with experience.

What Experience Teaches That Research Cannot

Academic research is incredibly valuable. It helps us understand mechanisms and identify what might work.

But research environments are controlled. Real markets are not.

In the real world you have to balance several competing realities:

• Ingredient effectiveness
• Manufacturing feasibility
• Regulatory compliance
• Cost of goods
• Athlete trust
• Speed to market

In a laboratory study, you might test a compound under ideal conditions with unlimited control.

In a product company, you have to formulate something that works, can be manufactured reliably, can be sold at a reasonable price, and can scale.

That gap between research and real products is where most ideas fail.

It is also where experience becomes incredibly valuable.

Returning to Research With a Different Perspective

Today I still approach sports nutrition through the lens of science.

But my perspective has changed.

Instead of asking only whether something works in theory, I ask a different set of questions.

Can athletes use this consistently?
Can it be produced safely and reliably?
Does it solve a real problem athletes experience?

Those questions shape how we build products at Headstrong.

You can learn more about the approach we take to athlete performance at Headstrong

The goal is not to create the largest product catalog. The goal is to build products that athletes actually trust and use.

Why Headstrong Focuses on Brain Performance

One of the biggest differences between the sports nutrition industry in 2008 and today is our understanding of brain performance.

For decades, sports supplements focused almost entirely on muscles. Protein for recovery. Creatine for strength. Carbohydrates for endurance.

Those are still important.

But athletes and coaches increasingly understand that mental performance drives physical performance.

Focus. Decision making. Emotional control. Recovery from stress.

These are all brain functions that influence performance in training and competition.

That realization is what led us to build Headstrong, a company focused on brain performance, resilience, and recovery for athletes.

You can read more about my work at the intersection of science and entrepreneurship 

The Biggest Lesson: Building Companies Is Applied Research

If there is one thing I have learned from building companies after spending years in academia, it is this.

Entrepreneurship is a form of applied research.

You start with a hypothesis about what people need.

You build something that attempts to solve that problem.

Then the market gives you feedback.

Sometimes the hypothesis is right. Often it needs adjustment. Occasionally it is completely wrong.

But the process is the same as science.

Observe. Test. Learn. Improve.

The difference is that the feedback loop happens much faster.

Building Again With Better Questions

When I helped build Rivalus, I had strong scientific knowledge but limited industry experience.

Today, building Headstrong, I approach the process differently.

The questions are clearer.

What problem are athletes actually trying to solve?
What solution can we build that is both scientifically sound and practical?
How do we earn trust from the people who use it?

Those questions guide every product decision we make.

And they are the kinds of questions that only come from experience.

Final Thought

Many scientists hope their research will one day reach the real world.

The reality is that very little academic research ever becomes a product that people actually use.

Bridging that gap requires more than good science.

It requires entrepreneurship, execution, and a willingness to learn from mistakes.

Building a sports nutrition company once teaches you a lot.

Building one again teaches you even more.