Px Coffee by Rarebird | Better health through coffee

Coffee being poured into a glass mug beside a blue coffee bag and a plant.

4.9 stars

Your coffee has a caffeine problem.

Px fixes that.

Caffeine spikes cortisol, raises blood pressure and is likely disrupting your sleep quality. It metabolizes slowly and over 50% of people process it slower due to genetics, making those side effects even worse.

Px Coffee is the first and only of its kind, replacing caffeine with Px, a smarter source of energy. Join thousands that have made the switch.

What is Px Coffee?

Great tasting coffee with Px, not caffeine

Morning energy jitter-free, no stress spikes

Afternoon focus without sleep disruption

Smarter metabolism gentler on the stomach

Antioxidant-rich packed with flavonoids

60-day guarantee try risk-free

What it isn't

Mushrooms, cacao, tea or spices

But what is Px?

AS SEEN IN

No more caffeine rollercoaster.

There's no doubt about it: Coffee is essential to our daily routines. But traditional coffee has caffeine, and caffeine comes with downsides.

You get about 30 minutes of free energy before the jitters and brain fog kick in. Then there's the afternoon cup or the afternoon crash. Both affect the rest of your day. It's frustrating to feel dependent on caffeine just to function.

What if coffee could be smarter? No more jitters... No more crashes... Only smooth, consistent, reliable energy.

Man smiling, sitting on a couch, holding a 'RARE BIRD' coffee cup.

Man in a sweater using a laptop and holding a coffee cup, smiling in a cozy setting.

After years of research, Rarebird has created the first and only Px Coffee. Using patented technology, Rarebird replaces caffeine with Px—an ingredient that naturally occurs in your body, but is typically overshadowed by the side effects of caffeine. Rarebird is the only coffee that allows you to experience the benefits of Px on its own.

Px kickstarts your day without triggering cortisol and adrenaline spikes, so you can have sip throughout the day, staying energized and focused, avoiding midday slumps and crashes and still sleep soundly at night.

With Px, you can stop worrying about caffeine and simply replace it with something better.

Join thousands

Who have experienced the difference

"I’m pretty sensitive to caffeine (and find the extended half life can interrupt my sleep, even when my last cup is around 1pm), but I’ve noticed a big difference with the Px in Rarebird... Rarebird is now basically the only coffee I drink"

Jeremy

Verified Buyer

"I was a true coffee lover since my teens, but after my 2nd pregnancy things changed & I couldn't handle it anymore. I wasn't able to have coffee anymore because of major jitters & blood sugar crashes, and too frequent bathroom breaks. Sadly I gave it up. Decaf was ok, but it was never as good and I could handle tea caffeine, so I stuck with that. But I can drink Rarebird! It truly doesn't cause any of these problems for me and it really is a miracle. I can finally enjoy coffee, even in the (early) afternoon."

M.S.

Verified Buyer

"Absolute life changer for me, given my sensitivity to caffeine. I’d switched completely to decaf since I’m no longer able to tolerate caffeine, but discovering Rarebird has been a godsend... Dark roast is some of the best coffee I’ve ever had."

Brendan

Verified Buyer

Jeremy

Verified Buyer

M.S.

Verified Buyer

Brendan

Verified Buyer

Jeremy

Verified Buyer

"Love it! 😍 All the benefits of regularly caffeinated coffee without the jitters!"

Paula D.

Verified Buyer

"I almost never write reviews, but this coffee is nothing short of a revelation. It delivers all the amazing perks of caffeine—focus, energy, and clarity—without any of the usual downsides. No crashing. No grogginess the next day. Just pure, clean energy that keeps you in the zone. The paraxanthine infusion has completely transformed my coffee experience, and honestly, my life. It’s become my secret weapon for tackling busy days, and I can’t stop raving about it to everyone I know. This isn’t just coffee—it’s a revolution. I truly believe it’s going to reshape the industry in a way that’s healthier and smarter for all of us."

Ju K.

Verified Buyer

"I’m a slow caffeine metabolizer so I was super happy to find this Px Coffee. I feel focused with no jitters, kinda like I took an adderall. And I have been able to sleep great. If it were regular caffeine id be up all night if I had any past 10am. The flavor is great and works well in my espresso machine."

Michelle R.

Verified Buyer

"I've always been quite sensitive to caffeine, but I also really enjoy drinking coffee. The consequences for [it] were spikes in anxiety and blood pressure. Even still, it seemed like my sensitivity kept getting worse over time, and I eventually... I needed to go caffeine free permanently. It was only a couple months after I made this decision that I found Rarebird... I became a subscriber shortly after trying it. This is the coffee that let me drink coffee again, and I'm really thankful for that. It's great-tasting, high quality coffee too."

Jamin

Verified Buyer

"Love it! 😍 All the benefits of regularly caffeinated coffee without the jitters!"

Paula D.

Verified Buyer

Ju K.

Verified Buyer

Michelle R.

Verified Buyer

Jamin

Verified Buyer

"Tastes good. Not as tired in the afternoon and easy to fall asleep."

Giovanna A.

Verified Buyer

"I used to struggle with sleep and completely eliminated coffee from my diet for more than a year, which was tough but necessary. I wish I'd had Rarebird at that time."

Andrew W.

Wired Magazine

"My sensitivity to caffeine is that I notice a 2nd cup in the afternoon throws off my sleep... I've really enjoyed their Px Coffee. I've only experimented twice... but happy to say no disruption to sleep"

Kevin V.

Verified Buyer

"Tastes amazing and makes me feel more calm... nice to be able to drink later in the day without having to worry about it hurting my sleep."

Kyle B.

Verified Buyer

"Tastes good. Not as tired in the afternoon and easy to fall asleep."

Giovanna A.

Verified Buyer

"I used to struggle with sleep and completely eliminated coffee from my diet for more than a year, which was tough but necessary. I wish I'd had Rarebird at that time."

Andrew W.

Wired Magazine

Kevin V.

Verified Buyer

"Tastes amazing and makes me feel more calm... nice to be able to drink later in the day without having to worry about it hurting my sleep."

Kyle B.

Verified Buyer

"Love this coffee! Smooth, rounded flavor without the hard impact to my stomach and NO JITTERS. Super happy that I discovered Rarebird."

Diana L.

Verified Buyer

"So I’m a coffee drinker. Not more than a cup a day early in the mornings because I have high blood pressure. Other brands I’ve tried increase my blood pressure because of the caffeine content. But since I’ve been drinking this brand of coffee, my pressure went down. 112/76. I’m still taking my blood pressure medicine though. Prior to Rarebird it was 140/85. No jittery, and I sleep like a baby at night time. Thank you to the creator of this coffee. 🙏🙏"

Bola A.

Verified Buyer

"I work in the financial services industry and have depended on coffee / caffeine since 2015 to keep me at 100%. I've tried natural sources of caffeine, tea, energy drinks that promise to be healthy, just water, and even though Coffee has it's draw backs, I've always come back for over a decade. Not anymore. My office just started offering this in the break room. I typically plan my day around caffeine because to avoid experiencing negative side effects (stomach pain, headache, crash), but I wanted to stress test Rarebird and drank 6 cups (2x my daily intake) and all I felt was energy... 10/10 would recommend."

Jeremy J.

Verified Buyer

"Every women over 40 needs to switch to drinking rarebird. Tastes amazing no hormone issues and sleep issues are gone. No more mid afternoon anxiety."

Briana L.

Verified Buyer

"Love this coffee! Smooth, rounded flavor without the hard impact to my stomach and NO JITTERS. Super happy that I discovered Rarebird."

Diana L.

Verified Buyer

Bola A.

Verified Buyer

Jeremy J.

Verified Buyer

"Every women over 40 needs to switch to drinking rarebird. Tastes amazing no hormone issues and sleep issues are gone. No more mid afternoon anxiety."

Briana L.

Verified Buyer

"My wife is like a total snob about coffee and where it’s sourced and... I bought this for her because intimate love and she ended up liking it a lot. Like a-lot-a-lot. Also she says she doesn’t get jitters or caffeine headaches like her usual stuff and she’s about 88% sure she’s not imagining it. But seriously, she can be really pretentious about it (bean quality) and she says it’s actually great."

Stephen K.

Verified Buyer

"It's really wonderful coffee! I have been enjoying it quite a lot. The flavor is incredibly good, and it does give a nice bump of energy without being overwhelming like regular coffee."

Aaron S.

Verified Buyer

"It's really good coffee. These guys have created a fantastic product. If you really love coffee but can't take the caffeine definitely give this a shot. As a caffeine sensitive person, this coffee even at full strength does not give the jitters or a very racy mind. I feel that it also interferes less with sleep, although it probably does have some effect. The taste is bold but balanced, it's really great stuff overall!"

Brian V.

Verified Buyer

Better health through coffee

Silhouette of a person sipping a drink during a vibrant sunset.

Afternoons

Sleep

Px's more efficient metabolism means energized afternoons, relaxed evenings, and better sleep, even when enjoyed later in the day.

Smiling person holding a mug and a smartphone indoors.

Hormones

Control

No cortisol or blood pressure spikes means you can sip throughout the day and stay focused and in control—because you want to, not have to.

Woman drinking from a white coffee cup in a cozy setting.

Anxiety

Stress

Multiple studies have shown Px to be anxiolytic (reducing anxiety), while a 2024 study found caffeine to be likely to actually increase anxiety.

Hands picking ripe coffee cherries from a plant.

Quality

Mold-Free

We strictly procure sustainably harvested specialty grade, single-origin coffee and test for mold and mycotoxins.

Experience Px Coffee

Patented | Award-winning | Mold-free

The Only Px Coffee

Benefits of Px Coffee

Exceptional Taste

How to brew Px Coffee

Quality Testing & Science

Rated 4.9/5 from 323 Reviews

Px Coffee

Medium Roast | 12 oz. Bag

Our most popular roast with notes of chocolate, brown sugar, and citrus. Roasted fresh every single week.

60mg Px per serving

Caffeine-like energy without the jitters

No afternoon crashes, sleepless nights

Rarebird Starter Pack | Two 12 oz. Bags

Our most popular selection. A month's supply of Px Coffee, allowing you to fully experience the benefits of replacing caffeine. Plus an extra 25% off.

60mg Px per serving

112 servings ($0.40/cup)

Caffeine-like energy without the jitters

No afternoon crashes, sleepless nights

Ground

Pods

Product Three

Dark

Bold

$0.43

dark chocolate, marshmallow, nuts

FAQs

Don't see your answer? Reach out to contact@rarebird.coffee and our team will be happy to help!

What is Px?

What does Px Coffee taste like?

How should I brew Px Coffee?

When will I start to feel a difference?

Our Mission

To make your everyday coffee experience the best it can be. By replacing caffeine with Px, you can finally combine the best aspects of traditional coffee—the bold flavor and the powerful energy boost—without the traditional tradeoffs.