Creatine is having a moment. And it has nothing to do with muscle mass.
For decades, creatine has been the supplement that lived in gym bags and protein shaker bottles. It's one of the most studied compounds in sports science, with an extraordinary body of evidence behind it for athletic performance. If you've ever taken it, you probably took it to lift heavier or recover faster.
But something has shifted in the research over the last several years. Scientists studying creatine for athletic performance started noticing something unexpected: the cognitive benefits. More mental energy. Better information processing. Less afternoon brain fog. Faster reaction times under pressure.
It turns out your brain uses creatine too, and for a lot of people, it isn't getting enough.
How creatine works in the brain
Most people know creatine as an ATP regeneration compound. ATP (adenosine triphosphate) is your body's primary energy currency. It's what your muscles use to contract, and what your cells use to do basically everything. Creatine helps regenerate ATP faster, which is why it supports athletic performance under high-intensity conditions.
What's less well known is that the brain is one of the most energy-demanding organs in the body. It accounts for about 20% of your total energy expenditure despite being only 2% of your body weight. And it uses the same ATP-based energy system as your muscles.
Creatine phosphate in the brain helps buffer ATP levels during periods of high cognitive demand, the mental equivalent of a hard sprint. When your brain is working hard, solving problems, maintaining focus, processing information quickly, creatine helps sustain the energy supply that makes that work possible.
What the research shows
The cognitive research on creatine has grown substantially, and the findings are worth knowing about:
• A systematic review published in Experimental Gerontology found that creatine supplementation improved short-term memory and intelligence/reasoning test scores
• Research on sleep-deprived subjects showed that creatine supplementation significantly reduced cognitive decline during sleep deprivation, which is relevant for anyone who has ever tried to function after a bad night
• Studies on vegetarians and vegans, who typically have lower baseline creatine levels from dietary sources, show particularly pronounced cognitive benefits from supplementation
• Multiple studies have found creatine supports processing speed and working memory under cognitively demanding conditions
The mechanism is well understood and biologically plausible. This isn't a supplement category where the proposed benefits are speculative. The pathway from creatine to brain energy to cognitive performance is clearly established.
The daily dose question
3-5 grams per day is the established maintenance dose for creatine, the amount consistently used in the research showing both athletic and cognitive benefits. It's the dose recommended by the International Society of Sports Nutrition and supported by decades of safety data.
This matters because a lot of functional food products that include creatine include a fraction of this dose. You'll see products with 500mg, 1g, or 2g of creatine attached to cognitive performance claims. Those doses are not what the research supports.
Our Focus cookie contains 3g of creatine. That's your full recommended daily dose in a single cookie. Not because we wanted a strong label claim, but because anything less wouldn't actually do the job.
What form of creatine we use
Creatine monohydrate. It's the form used in the overwhelming majority of research: the most studied, the most bioavailable, and the most reliable. Despite the proliferation of premium creatine forms like creatine HCl, buffered creatine, and creatine ethyl ester, the evidence consistently shows that creatine monohydrate performs as well or better than the alternatives.
We didn't choose a flashier form to justify a higher price point. We chose the one that works.
Does it need a loading phase?
Short answer: no. Loading phases (taking 20g per day for 5 to 7 days) accelerate muscle creatine saturation, which is relevant for athletes trying to see performance gains quickly. For the cognitive benefits, and for most people using creatine as a daily supplement, consistent daily intake at 5g is the approach most research supports. Benefits build over time with consistent use.
One more thing: creatine works best when you're well-hydrated. Not dramatically more water than usual. Just make sure you're drinking normally throughout the day. Your brain will thank you.
Sources:
Why Does the Brain Need So Much Power?
Appraising the brain's energy budget
Creatine supplementation, sleep deprivation, cortisol, melatonin and behavior
The influence of creatine supplementation on the cognitive functioning of vegetarians and omnivores
International Society of Sports Nutrition position stand on creatine
