TREND REPORT
The Shift Away From "Stimulant-Free," And Toward Actual Clean Energy
Why more people are looking past caffeine substitutes entirely, and what that means for the pouch category.
For a while, "nicotine-free" was the whole pitch. Then it became "caffeine-free" too. Now, a growing number of consumers are asking a more specific question: free of what, exactly, and replaced with what?
That question is reshaping more than just the pouch aisle.
THE BROADER SHIFT.
The global market for functional mushrooms was worth about $12.06 billion in 2025. It's expected to grow to $13.20 billion in 2026, and keep growing by about 9.45% a year through 2031, according to market research firm Mordor Intelligence.
Growth Trajectory
9.45%A year through 2031
The Category Growing Around "Complementary" Energy
Mushroom coffee brands were some of the first to try this. They used ingredients like lion's mane and chaga to give people focus and energy, without the jittery feeling of a second or third cup of coffee. That same idea has since spread to ready-to-drink beverages, snack bars, and gummies made with real mushroom extracts instead of man-made stimulants.
The common thread isn't a lack of energy. It's a different relationship with caffeine, not replacing it, but working alongside it.
Q: Isn't this just the same "clean energy" marketing everyone uses now?
A: The words are common, but what's actually inside varies a lot. Some products just swap one stimulant for a very similar one. Others use ingredients that work in a completely different way. That difference is the real trend, not the marketing words around it.
Functional mushroom coffee
Ready-to-drink beverages
Nootropic gummies
Nicotine-free pouches
The same shift, toward ingredients that complement an existing routine instead of replacing it, is showing up across several categories at once.
Why the Pouch Category Is Catching Up
Nicotine-free pouches were slower to catch on to this shift. Most early brands solved the "remove nicotine" problem the same way: swap it for a different stimulant. Either caffeine itself, or something like paraxanthine, used most notably in the pouch brand Ultra, which works almost the same way as caffeine.
That approach works for some people. But it doesn't answer the question more people are actually asking. It's not just "is this nicotine-free." It's "does this work well with everything else I'm already using."
TeaCrine®, the brand name for theacrine, is one of the ingredients driving this shift in the pouch category. Unlike caffeine or paraxanthine, it isn't made to replace your morning coffee. Studies on taking it with caffeine show the two actually work well together, caffeine helps your body absorb more of the TeaCrine, instead of competing with it.1 And this isn't a "wired for longer" ingredient. TeaCrine works through a calmer, steadier pathway than caffeine's sharper spike. The goal is smoother energy through the day, not a longer stimulant hit.
Stimulant Swap.
Caffeine or paraxanthine, replaces nicotine with a different version of the same mechanism.
Complementary Energy.
TeaCrine and functional mushrooms, works alongside your existing routine through a different mechanism entirely.
Where Flow Pouches Fit Into This
Flow Pouches were built around this idea, using TeaCrine along with 100% organic fruiting body Lion's Mane, Cordyceps, and Reishi, plus a highly bioavailable form of vitamin B12 that supports energy metabolism. It's not just harsh stimulants and flavoring in a pouch. It's delivered through the same gum-and-cheek absorption that made pouches popular in the first place.
The research behind TeaCrine includes one study showing more energy and focus without the jittery feeling,2 and an 8-week study showing no signs of tolerance building up with daily use.3 That combination, more energy without jitters, and no drop-off over time, is a big reason this ingredient is gaining ground as the pouch category catches up to what's already happening in coffee, drinks, and supplements.
Built for Where the Category Is Actually Headed.
0 Nicotine. 0 Caffeine. Complementary with Caffeine, By Design.
In a 2026 survey of Flow customers, 76% said they quit nicotine completely or cut their use by at least half, and 87% said they had better energy throughout the day.4 These numbers come from a customer survey, not a clinical trial, so keep that in mind along with the research above.
What This Likely Means Going Forward
The wider functional ingredient market is growing by close to 10% a year through the early 2030s. If that's any sign, the pouch category probably won't stay behind for long. Brands still relying on a simple stimulant swap, caffeine or something close to it, will increasingly be up against formulas built on a completely different idea.
The real dividing line probably isn't "nicotine-free" anymore. It's whether what replaced the nicotine works the same way as before, or works with the rest of your day instead of against it.
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Try the Formula Built for Where Energy Is Actually Headed1He H, Ma D, Crone LB, Butawan M, Meibohm B, Bloomer RJ, Yates CR. Assessment of the Drug-Drug Interaction Potential Between Theacrine and Caffeine in Humans. Journal of Caffeine Research. 2017 Sep 1;7(3):95-102. DOI: 10.1089/jcr.2017.0006 2Ziegenfuss TN, et al. The effects of Teacrine, a nature-identical purine alkaloid, on subjective measures of cognitive function, psychometric and hemodynamic indices in healthy humans: a randomized, double-blinded crossover pilot trial. Journal of the International Society of Sports Nutrition. 3Taylor L, et al. Safety of TeaCrine, a non-habituating, naturally-occurring purine alkaloid over eight weeks of continuous use. Journal of the International Society of Sports Nutrition. 2016. 4In a self-reported 2026 Flow post-purchase customer survey. Market data: Functional Mushroom Market Size and Share Report, Mordor Intelligence, 2026.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.