The Px Difference
Clear, focused energy
Smooth, balanced boost
Sleep-friendly performance
Px Coffee | Whole Bean & Ground
The world’s first coffee powered by Px — delivering sharper focus, steadier energy, and better sleep without caffeine’s edge.
The Px Difference
Clear, focused energy
Smooth, balanced boost
Sleep-friendly performance
Best value when you stock up.
Why subscription only?
Px Coffee works best with consistency.
Steadier energy isn’t built in a single cup — it’s built over weeks. Subscription helps you stay in rhythm and avoid the spike-and-crash cycle.
By ordering directly from us, you’re also getting the freshest product possible — roasted in small batches and shipped straight to you — at our best available price.
You’re always in control. Pause, skip, or cancel anytime.
Prefer a one-time purchase? Px Coffee is also available on Amazon.
Px Coffee | Whole Bean & Ground
Everything You’re Wondering
How is Px better than caffeine?
Px (paraxanthine) is the primary compound your body converts caffeine into — about 80% of caffeine becomes Px during metabolism.
Caffeine increases alertness, but it can also trigger a stress-hormone response, which is where jitters, crashes, and disrupted sleep often come from. It also has a relatively long half-life, meaning it can stay active in your system for hours.
Px works through the same brain receptors to support focus and energy — but with a shorter half-life and without that overstimulating edge.
The result: steadier energy, clearer focus, and a smoother overall experience.
Who’s this for?
Px Coffee is for people who love coffee — but don’t love how caffeine makes them feel.
It’s for:
- Afternoon coffee drinkers who still want to sleep well
- High-performers who want focus without intensity
- Anyone sensitive to caffeine’s spikes and crashes
- Coffee lovers who don’t want to give up the ritual
If regular coffee has started feeling like too much, Px was made for you.
Is it safe? What’s the science?
Px isn’t new to your body — it’s the compound your body naturally produces from caffeine.
It’s been studied for decades and is responsible for most of caffeine’s cognitive benefits.
Like caffeine, Px binds to adenosine receptors in the brain to promote alertness. Unlike caffeine, it does not significantly stimulate cortisol or adrenaline — which is why many people report a smoother feel.
We use a carefully measured amount designed to support focus and steady energy.
(As always, consult your healthcare provider if pregnant, nursing, or managing a medical condition.)
What does it taste like?
Like real coffee — because it is.
We use specialty-grade beans and roast them with the same care as any premium coffee. You’ll get the flavor, aroma, crema, and brewing ritual you expect.
The only thing that feels different is the energy.
Not All Energy Is Created Equal
See how Px Coffee compares across the metrics that actually matter.
Smooth Energy Curve
Gentle on Sleep
Calm Focus
Stomach-Friendly
Specialty Coffee Taste
Caffeinated Coffee
Coffee Alternatives
Px Coffee
Real Results from Real Subscribers
Why Px Coffee Subscribers stay around: unlocking focus, flow and full potential.
99%
Smooth energy, no crash
97%
No negative impact to sleep
97%
Calm focus, no added stress
95%
Gut-friendly, calm stomach
Based on a Sept. '25 customer survey
The Px Shift
Energy isn’t meant to spike — it’s meant to stabilize. Here’s how that shift typically unfolds.
1st Cup
Smooth From the Start
You’ll likely notice the difference right away. Clear, steady alertness without the sharp rush or wired feeling caffeine can bring. It feels like coffee — just smoother, more controlled, and easier on your system.
1st Week
Consistency Kicks In
After a few days, the rhythm starts to shift. Energy feels more even throughout the day, with fewer dips in the afternoon. You may find yourself thinking less about timing your next cup — and more about getting things done.
1st Month
Stable by Default
By now, it doesn’t feel like a “boost” — it just feels normal. Focus stays steady, mornings feel clean, and your sleep doesn’t feel disrupted by what helped you power through the day. It’s less stimulation, more stability.
Coffee, Reinvented.
“When I realized most of caffeine’s benefits come from Px (paraxanthine), I stopped asking how to quit coffee — and started asking how to make it better.”
Proven by Science. Perfected by Experts.
Every cup of Px Coffee is built on verified science, patented technology, and sustainable sourcing — recognized as one of the best innovations in specialty coffee.
Science-Backed
Developed with support from the National Science Foundation, Px Coffee is grounded in real research—not marketing hype.
Patented Technology
Our proprietary Px infusion process replaces caffeine with paraxanthine for smooth, steady energy in every cup that you won't find elsewhere.
Award-Winning
Named Best New Product 2023 by the Specialty Coffee Association for redefining coffee that feels as good as it tastes.
Sustainably Sourced
Crafted from ethically grown, mold-tested, specialty-grade beans and roasted in small batches for freshness and traceability.
FAQs
Please read our FAQs page to find out more.
What are the benefits of Px Coffee?
Px Coffee improves your mood, focus, and sleep. It helps with focus and energy like caffeine, but without the jittery, wired feeling. Px breaks down in your body faster than caffeine, which lets you enjoy a cup in the afternoon or early evening without disrupting your sleep.
How soon will I notice a difference with Px Coffee?
Many customers notice a difference after just a few cups. We recommend switching to Px Coffee for at least five days to fully experience its benefits to mood, focus, and sleep.
What exactly is Px?
- Here’s the science: Px is the primary metabolite of caffeine—your body converts about 80% of the caffeine you consume into Px. It doesn’t occur in plants like caffeine does, but it exists naturally in the human body.
- We at Rarebird have developed unique technology with the help of the National Science Foundation to produce the first and only coffee that contains Px instead of caffeine.
Will Px coffee taste different than traditional coffee?
- No – Px Coffee looks, smells, and tastes just like traditional coffee, and is brewed just like traditional coffee. The only difference is that it contains Px instead of caffeine. It’s just two simple ingredients: Arabica coffee (with the caffeine removed) and Px!
- We work with sustainably focused coffee importers to ensure the highest quality standards, ultimately providing you a cup that tastes as good as it makes you feel.
How is Px Coffee made?
We start with a specialty-grade Colombian Arabica coffee, which is decaffeinated at the source using the Sugarcane process. This method is safe, environmentally friendly, and preserves the flavor exceptionally well. The coffee is then shipped to the US, where it is tested for mycotoxins upon arrival.