What is Px Coffee?
Px Coffee is real coffee made without caffeine.
Instead, it’s powered by Px (paraxanthine) — the more refined stimulant your body naturally creates when it processes caffeine.
The result is coffee that delivers clear, steady energy and focus, without the jittery spikes or sleep disruption many people experience with caffeine.
Same ritual. Better energy.
Why Px Over Caffeine?
Caffeine works by blocking fatigue signals — even as they continue to build in the background. That’s why it often comes with crashes, anxiety, or disrupted sleep.
Px works differently. It delivers alertness and focus without overstimulating your system, and it clears more efficiently — so energy feels smoother during the day and more compatible with sleep at night.
In short:
Less stress on your system. More usable energy.
Taste & Craft
Px Coffee is crafted to taste like exceptional specialty coffee — because it is.
We start with high-quality, specialty-grade beans, roast in small batches, and dial in each profile for balance, clarity, and drinkability. The Px infusion process preserves the character of the coffee, so you still get rich flavor, not “functional” weirdness.
Nothing added to mask flavor.
Nothing taken away from the experience.
Why Not Single Bags?
Px Coffee works best when it’s part of a consistent routine. Just like sleep, training, or nutrition, the benefits of Px — improved focus, steadier stress response, and better sleep patterns — build over time, not in a few cups.
Most U.S. coffee drinkers go through a 12-oz bag in about 5–7 days, and shipping can take a few days. Offering 2-bag and 4-bag options helps ensure you don’t run out mid-routine.
With coffee prices rising, shipping multiple bags together also keeps the price per bag more economical than frequent single-bag orders.
Rated 4.9/5.0 from 435 reviews
Clean Energy. Clear Focus. No Caffeine.
Powered by Px — the more refined stimulant your body naturally creates when caffeine breaks down.
SHARPER
focused clarity,
no brain fog
STEADIER
balanced boost,
no spikes
SOUNDER
sleep-friendly,
PM-approved
SHARPER
focused clarity,
no brain fog
STEADIER
balanced boost,
no spikes
SOUNDER
sleep-friendly,
PM-approved
60mg Px per serving (caffeine-free)
Fresh Roasted Weekly
Roast Level:
Most popular!
Medium Roast
Milk Chocolate, Light Citrus
Most popular!
Dark Roast
Dark Chocolate, Nutty
Quantity:
1 Bag
(56 Cups)
$0.43
/cup
Most popular!
One Person
(112 Cups)
24 oz. Coffee | $0.63/cup
/cup
Save 5%
Two People
(224 Cups)
48 oz. Coffee | $0.59/cup
/cup
1 Bag
(56 Cups)
$0.43
/cup
Most popular!
One Person
(112 Cups)
24 oz. Coffee | $0.63/cup
/cup
Save 5%
Two People
(224 Cups)
48 oz. Coffee | $0.59/cup
/cup
FREE SHIPPING on all subscriptions!
4-Week Supply
Benefits:
off on every order
Free shipping on all subscriptions
Refill ships every 4 weeks or cancel any time
Pause, change or cancel anytime
30 days risk-free
30-Day Guarantee
One-time purchase
You'll miss out on:
No discount
Free shipping
In stock, ready to ship
What is Px Coffee?
Px Coffee is real coffee made without caffeine.
Instead, it’s powered by Px (paraxanthine) — the more refined stimulant your body naturally creates when it processes caffeine.
The result is coffee that delivers clear, steady energy and focus, without the jittery spikes or sleep disruption many people experience with caffeine.
Same ritual. Better energy.
Why Px Over Caffeine?
Caffeine works by blocking fatigue signals — even as they continue to build in the background. That’s why it often comes with crashes, anxiety, or disrupted sleep.
Px works differently. It delivers alertness and focus without overstimulating your system, and it clears more efficiently — so energy feels smoother during the day and more compatible with sleep at night.
In short:
Less stress on your system. More usable energy.
Taste & Craft
Px Coffee is crafted to taste like exceptional specialty coffee — because it is.
We start with high-quality, specialty-grade beans, roast in small batches, and dial in each profile for balance, clarity, and drinkability. The Px infusion process preserves the character of the coffee, so you still get rich flavor, not “functional” weirdness.
Nothing added to mask flavor.
Nothing taken away from the experience.
Why Not Single Bags?
Px Coffee works best when it’s part of a consistent routine. Just like sleep, training, or nutrition, the benefits of Px — improved focus, steadier stress response, and better sleep patterns — build over time, not in a few cups.
Most U.S. coffee drinkers go through a 12-oz bag in about 5–7 days, and shipping can take a few days. Offering 2-bag and 4-bag options helps ensure you don’t run out mid-routine.
With coffee prices rising, shipping multiple bags together also keeps the price per bag more economical than frequent single-bag orders.
"It’s a weird biohack, but it works."
"Provides a similar energy kick, without caffeine’s nasty downsides."
"Those jitters I get from regular coffee were nonexistent for me after drinking Rarebird."
Real Results,
from Real Px Coffee Drinkers
Why our 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
Born from a Berkeley PhD’s Battle with Burnout
"Like millions, I relied on caffeine to get through the day—until I realized it was a crutch. Instead of giving me energy, it left me anxious and burned out. When I couldn’t find a better alternative, I was forced to make one. Px Coffee was born from a simple idea: energy should work with your body, not against it."
- Jeffrey, Founder & CEO
Born from a Berkeley PhD’s Battle with Burnout
"Like millions, I relied on caffeine to get through the day—until I realized it was a crutch. Instead of giving me energy, it left me anxious and burned out. When I couldn’t find a better alternative, I was forced to make one. Px Coffee was born from a simple idea: energy should work with your body, not against it."
- Jeffrey, Founder & CEO
The Coffee Helping Thousands Find Clarity
Thousands of happy, productive customers
4.9 stars | 750,000+ cups sold
Hear From Others
Who have made the switch
Px vs. Caffeine:
The Clear Difference
Our patented formula sets a new standard that traditional coffee can't match.
Smooth, Steady Energy
No Crash or Jitters
Sharper Focus & Clarity
Sleep-Safe
Gut-Friendly
Great Taste (real coffee)
Science-Backed Innovation
Px Coffee
Regular Coffee
Coffee Alternatives
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.
Ali Spagnola Tested Px Coffee vs Caffeine — Here’s What Happened.
Better energy, clearer focus, and sleep that finally stayed on track.
FAQs
Don't see your answer? Reach out to contact@rarebird.coffee and our team will be happy to help!
How is Px Coffee made?
We start with award-winning, specialty-grade coffee and replace caffeine with Px (paraxanthine) — a cleaner, more focused compound your body naturally produces when it metabolizes caffeine. Each batch is roasted to highlight flavor and balance, then infused through our patented process for consistent energy and smooth taste.
Is Px Coffee tested for safety and quality?
Yes. Px Coffee is developed with support from the National Science Foundation, and each batch is third-party tested for purity, potency, and safety. We only use specialty-grade beans and rigorously monitor every step — from sourcing to packaging — to meet the highest standards.
When will I start noticing the benefits?
Most people notice a difference within their first cup — feeling alert and focused without jitters or anxiety. For others, benefits like improved sleep quality, calmer afternoons, and reduced caffeine-related stress build over several days to a week of consistent use.
Why does Px Coffee cost more than regular coffee?
Px Coffee isn’t regular coffee. It’s made with specialty beans, a patent-pending formulation, and scientifically verified ingredients. You’re not just paying for coffee — you’re paying for cleaner, smoother energy that supports your focus, sleep, and well-being.
Can I buy Px Coffee as whole beans?
Not yet. Px Coffee is currently available as ground coffee, pods, Canned Cold Brew & Instant — all optimized for even extraction and peak flavor. Whole-bean options are coming soon — you can sign up for early access at checkout.