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What is Px Coffee?
Px Coffee is the first coffee made with paraxanthine (Px) instead of caffeine — the cleaner, more focused ingredient your body naturally converts caffeine into. It delivers smooth, steady energy and mental clarity without the anxiety, crash, or sleep disruption caffeine can cause.
How Px Works
Px (short for paraxanthine) is what your body naturally creates when it breaks down caffeine. It’s one of the key metabolites responsible for caffeine’s mental and physical effects — but without the same downsides.
When you drink regular coffee, caffeine has to be metabolized first before your body can access Px. Px Coffee skips that step by starting with Px itself. The result is a smoother, more focused energy experience — one that supports clarity and calm without the jittery spikes, anxiety, or sleep disruption that caffeine often brings.
Px vs. Caffeine
Caffeine floods your system, spiking cortisol and overstimulating the brain. Px works smarter — offering focus without the jitters, calm without the crash, and energy that supports better sleep. It’s everything you love about coffee, without the downsides.
Benefits & Results
✓ Sharper focus & flow
✓ Calmer, more balanced energy
✓ No stress spike or afternoon crash
✓ Easier on digestion
✓ Sleep-friendly, even in the afternoon
All proven through customer feedback and supported by NSF-funded research.
Taste & Craft
We start with award-winning specialty coffee — roasted in small batches for balance, depth, and natural sweetness. Every roast is designed to complement Px’s smooth, focused energy, so your coffee tastes as good as it makes you feel.
Brew Guide
Brew it your way: drip, French press, espresso, or pod. Px Coffee is versatile and optimized for clean flavor extraction, whether you’re making a single cup or a family pot. Explore our quick brew tips to get the perfect balance of taste and energy.
4.9 stars | 1,000,000+ cups brewed
Medium Roast
Mental clarity starts with what’s in your cup. Px Coffee replaces caffeine with Px—a cleaner, more refined form of energy derived from caffeine itself—delivering smooth, steady focus and clarity without the chaos of caffeine.
Includes $27 in FREE welcome gifts
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Trial Size
23.5% off
10 Days
1 person
34 cups
34 cups
$0.68
/cup
Most popular!
30 Days
1 person
102 cups
$0.56
/cup
Family Pack
Family Pack
30 Days
2 people
204 cups
(224 Cups)
$0.53
/cup
Our most flexible option.
Most popular!
Medium Roast
Classic
$0.40
chocolate, brown sugar, citrus
Dark Roast
Bold
$0.43
dark chocolate, marshmallow
Trial Size
10 Days
34 cups
34 cups
$0.68
/cup
Most popular!
30 Days
102 cups
$0.56
/cup
Family Pack
Family Pack
60 Days
204 cups
(224 Cups)
$0.53
/cup
Trial Size
10 Days
1 bag
34 cups
$0.68
/cup
Most popular!
30 Days
3 bags
$0.56
/cup
Family Pack
Family Pack
60 Days
6 bags
(224 Cups)
$0.53
/cup
1 Bag
(56 Cups)
$0.43
/cup
Most popular!
2 Bags
(112 Cups)
$0.40
/cup
4 Bags
(224 Cups)
$0.35
/cup
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FREE $27 Gift: Mug + 2 Instant Samples
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Up to 40% off + Free shipping
FREE $54 Gift: 2 Mugs + 4 Instant samples
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You Choose: Roast, grind size, or pods
Need K-Cup Pods or Espresso Grind?
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Benefits Over Time
Day 1: First cup. Only energy, no crash.
Week 1: Better sleep, better focus.
Month 1: Peak performance every day.
DreamEase Sleep Capsules Are Unlike Any Other Sleep Aid
Real results
100%
of customers agree it provides smooth, steady energy and improves mental clarity and focus.
97%
of customers agree it doesn't disrupt their sleep.
97%
of customers agree it improves productivity.
95%
of customers agree it is easy on their stomach.
Based on survey responses of 38 customers.
FSA/HSA eligible with float
What is Px Coffee?
Px Coffee is the first coffee made with paraxanthine (Px) instead of caffeine — the cleaner, more focused ingredient your body naturally converts caffeine into. It delivers smooth, steady energy and mental clarity without the anxiety, crash, or sleep disruption caffeine can cause.
How Px Works
Px (short for paraxanthine) is what your body naturally creates when it breaks down caffeine. It’s one of the key metabolites responsible for caffeine’s mental and physical effects — but without the same downsides.
When you drink regular coffee, caffeine has to be metabolized first before your body can access Px. Px Coffee skips that step by starting with Px itself. The result is a smoother, more focused energy experience — one that supports clarity and calm without the jittery spikes, anxiety, or sleep disruption that caffeine often brings.
Px vs. Caffeine
Caffeine floods your system, spiking cortisol and overstimulating the brain. Px works smarter — offering focus without the jitters, calm without the crash, and energy that supports better sleep. It’s everything you love about coffee, without the downsides.
Benefits & Results
✓ Sharper focus & flow
✓ Calmer, more balanced energy
✓ No stress spike or afternoon crash
✓ Easier on digestion
✓ Sleep-friendly, even in the afternoon
All proven through customer feedback and supported by NSF-funded research.
Taste & Craft
We start with award-winning specialty coffee — roasted in small batches for balance, depth, and natural sweetness. Every roast is designed to complement Px’s smooth, focused energy, so your coffee tastes as good as it makes you feel.
Brew Guide
Brew it your way: drip, French press, espresso, or pod. Px Coffee is versatile and optimized for clean flavor extraction, whether you’re making a single cup or a family pot. Explore our quick brew tips to get the perfect balance of taste and energy.
"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."
Other popular products
K-Cup Pods
single-serve cups
Cold Brew Cans
portable & ready-to-drink
Instant Sachets
craft coffee on the go
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.