★★★★★Rated 4.9 · Excellent

94% of dog parents tell us:

Noticeably calmer behavior in 7–21 days

Calm that starts on the inside. Splyrd Calm™ Postbiotic Chews are made for dogs struggling with:

  • ✓Pacing at night and broken, restless sleep
  • ✓Reactive walks and jumpy startle responses
  • ✓Panic during storms and fireworks
  • ✓Stress itching and an unsettled gut

One daily postbiotic chew that rebuilds the gut–brain axis, the place where over 95% of your dog's serotonin is made.

🏆Trusted by 35,000+ dog parents

Go after the root of anxiety and reactivity, without sedating your dog:

  • ✓Supports gut–brain balance for calm that lasts
  • ✓Rebuilds the gut with postbiotics, faster than probiotics
  • ✓Non-sedative: alert and present, just calmer
  • ✓Soft chews in flavors dogs actually want

Covered by our 90-day money-back guarantee, and fewer than 1% of customers ever use it.

🐾Loved by thousands of calmer, happier dogs

One easy dose for every size and breed. No weighing, no math: just 2 chews a day.

🐕Small dogsUnder 25 lbs
2 chews daily
🐕‍🦺Medium dogs25–75 lbs
2 chews daily
🦮Large dogsOver 75 lbs
2 chews daily
💡 Give daily for at least 21 days to feel the full gut–brain reset.
Only 5 left in stock

High Demand Alert: Vets recommending Splyrd Calm™ Postbiotic Chews have pushed demand to record levels. This batch is almost gone.

60 Chews
Chicken
In stock, ships — tomorrow
90-day money-back guaranteeFewer than 1% of customers ever claim it
WARNING: Low Stock Notice

This formula sold out 12 times last year. If you've been on the fence, grab it while the limited sale is still running.

PS: Splyrd Calm™ is ONLY sold here, so don't fall for fakes on Amazon/eBay.

Dr. Rachel Harmon
"Sedation only switches the alarm off. Splyrd Calm rebuilds the signal, and that's why the calm actually sticks."Dr. Rachel HarmonVeterinarian · 15 years in integrative practice
Directions for use

Daily feeding guide

🐕 All dog sizes · 2 chews daily ♥Split AM/PM for the best results: 1 chew in the morning and 1 in the evening. Consistency matters, because gut–brain balance rebuilds over time.
💡 Stress-trigger tipGive 1 extra chew 30–60 minutes before fireworks, storms or vet visits.
Ingredients

⚡ Core Postbiotic Complex

🦠 Works from day 1 · Postbiotic Metabolite Blend · 500 mgButyrate, acetate and propionate (SCFAs) help repair the gut lining and restore the gut–brain axis, where over 95% of serotonin is produced.
🌿 Works within 30–45 min · L-Theanine · 100 mgEncourages calm focus and softens stress responses without sedation, helping dogs settle in high-anxiety moments.
🌾 Builds over days · Sensoril® Ashwagandha · 125 mgA clinically studied adaptogen that helps regulate cortisol. Especially helpful for rescue and anxious dogs carrying a heavy chronic-stress load.
🌼 Supports long-term calm · Chamomile Extract · 25 mgA gentle calming botanical that eases tension and supports deeper, more restorative sleep.

Inactive ingredients: natural flavoring (chicken, beef, salmon, pork or unflavored), tapioca starch (binder), glycerin (moisture), natural preservatives (shelf stability).

Loved by thousands.. 🐾
Carol B.2 weeks ago · 🌍
···
A few weeks in and she's calmer, quieter, and nowhere near as demanding or reactive. I truly didn't believe a supplement could change this much, but here we are. She's a different dog.
👍❤️😮 1.4k38 Comments
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Elizabeth M.3 days ago · 🌍
···
Love this product. I have 2 dogs and saw a big shift in both: better digestion, shinier coats, and no more runny poop. My Border Collie used to be quite aggressive and he's changed for the better. Highly recommend!
👍❤️😮 2.7k67 Comments
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Taylor Y.1 week ago · 🌍
···
Way less pacing and whining in the first week. My rescue has always fallen apart in storms: hiding, shaking, impossible to comfort. A few days on Splyrd Calm and she started to settle. She just seems so much more relaxed.
👍❤️😮 5.1k129 Comments
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Calm dogThe gut controls the calm

Source: Cryan & Dinan, "Mind-altering micro-organisms: the impact of the gut microbiota on brain and behaviour," Nature Reviews Neuroscience (2012).

The science behind it

Calm begins
in the gut.

New research on the gut–brain axis shows that over 95% of your dog's serotonin is made in the gut, not the brain. When the microbiome is thrown off, the nervous system gets stuck on permanent high alert: pacing, panting, startling at everything.


Restore the gut and calm follows on its own. That's exactly what Splyrd Calm™ is built to do.

94%Noticeable improvement in calm behavior within 7–21 days
84%Less pacing, panting and startle responses
92%Better rest during triggers like storms and fireworks
Give Your Dog the Calm They Need →
How it works

4 Ingredients.
3 Timeframes.
1 Lasting Result.

Most calming treats lean on one weak ingredient. Splyrd Calm™ uses a dual-action formula that works on three timeframes at once, easing your dog right now while rebuilding long-term calm from the gut up.

⚡
Works within 30–45 minutes

L-Theanine — The Fast Settler

Takes the edge off the immediate stress response so your dog can settle in high-anxiety moments. No sedation, no zombie effect: your dog stays alert and present, just calmer.

🛡️
Builds over days

Postbiotic Blend — The Gut Restorer

Butyrate, acetate and propionate help repair the gut lining and restore the gut–brain connection, where over 95% of serotonin is made. As the gut heals, the brain stops firing constant "danger" signals.

🔄
Compounds over weeks

Sensoril® Ashwagandha & Chamomile — The Calm Builder

Sensoril® Ashwagandha helps regulate cortisol dysregulation, the stress-hormone pattern that keeps rescue and anxious dogs stuck in fight-or-flight. Chamomile supports deeper, more restorative sleep. Together they build a new emotional baseline: less reactive, quicker to settle. Calm that lasts all day, not just an hour.

35,000+Dogs helped
94%See results in 7–21 days
90-dayMoney-back guarantee
<1%Refund rate

A daily routine in 3 simple steps

So easy you'll never forget it.

Step 1

Give it daily

Two soft chews, straight from the jar. With a meal or as a treat, every single day.

Step 2

Give it time

For the first 1–2 weeks it works from the inside out, rebuilding the gut–brain axis. That's completely normal.

Step 3

Notice the difference

Most dog parents see calmer behavior, better sleep and less reactivity within 7–21 days.

Splyrd Calm Chews
🔥 Fall Sale — Limited Time

Ready to give your dog
lasting calm?

  • 94% of dogs show results within 7–21 days
  • Non-sedative: their personality stays intact
  • Independently lab tested, over-delivers on dose
  • Subscribe & save 20%, cancel anytime
Claim Your Discount ↑ 🛡️ 90-day money-back guarantee · No questions asked
See the difference

We do calm
differently.

Splyrd Calm™ doesn't mask symptoms or sedate your dog. It works from the inside out, restoring the gut–brain axis where stress actually starts. That's why it works when everything else hasn't.

Splyrd Calm™Postbiotic chews
Generic calming treats
Targets the root cause
✓Restores gut–brain communication
✕Generic "calming"
Non-sedative
✓Alert, present, just calmer
✕Often dulls awareness
Results in 7–21 days
✓Builds progressively over weeks
✕Weeks to months, if ever
Independently lab tested
✓509 mg actual vs 500 mg label
✕Rarely tested independently
Works across triggers
✓Supports the nervous-system baseline
✕Single-use or single-trigger
90-day guarantee
✓3× longer than the industry standard
✕30 days or none
Try Splyrd Calm Risk-Free →✓ 100% satisfaction · 90-day money-back · No questions asked

Authenticity Notice

We've learned that inferior, counterfeit products are being sold on Amazon using the Splyrd Calm name.

Please note that Splyrd has never authorized any third party to market or sell our products.

To be sure you're getting genuine Splyrd Calm chews with pharmaceutical-grade postbiotics, always buy directly from Splyrd.shop

Got questions?

Frequently Asked Questions

Everything you need to know about Splyrd Calm™ Chews.

How long until I see results?

Splyrd Calm™ works in two phases at the same time.

Phase 1 — Within 30–45 minutesL-Theanine and chamomile extract start supporting relaxation, helping your dog feel calmer and less reactive almost right away.
Phase 2 — Within 7–21 daysThe postbiotic blend restores gut integrity and rebalances the gut–brain axis, where the deeper, lasting change happens: less reactivity, easier settling, a calmer baseline.
Is Splyrd Calm™ safe for daily use?

Yes. Splyrd Calm™ is non-sedative, non-drowsy and made with gentle, vet-informed ingredients designed for long-term daily use.

Postbiotics work by gradually restoring gut balance, so consistency is key. Most dogs show their best results after 3–4 weeks of daily use.

Will this make my dog sleepy or "zombie-like"?

No. Splyrd Calm™ supports natural relaxation without dulling personality, awareness or energy.

Unlike treats that suppress the nervous system, Splyrd Calm™ works from the gut up, restoring your dog's own ability to handle stress. Present, alert and happy. Just calmer.

Why postbiotics instead of probiotics or CBD?

Probiotics are live bacteria that have to survive digestion to work, and most don't. CBD masks symptoms but never touches the root cause.

Postbiotics are the beneficial compounds those bacteria produce: stable, bioavailable and ready to use immediately. They directly support the gut lining and restore the gut–brain signaling that governs mood and stress responses.

How is Splyrd Calm™ different from other calming treats?

Most calming treats cover up symptoms for a few hours. Splyrd Calm™ works from the inside out by supporting the gut–brain axis, the root cause behind most anxiety and reactivity in dogs.

Our postbiotic complex paired with L-Theanine creates calm that builds naturally over time instead of wearing off after one dose.

My dog is extremely anxious or reactive. Will it still work?

Yes. Splyrd Calm™ was formulated specifically for dogs with deep stress patterns, trauma histories and hypervigilance.

Research shows 79% of reactive dogs have measurable gut dysbiosis, which keeps their nervous system stuck in survival mode. Many owners report better settling and less pacing within the first few weeks, and you're covered by a 90-day guarantee.

Can I use it with food, other supplements or training?

Yes. Splyrd Calm™ fits alongside normal diets and most supplements. It pairs especially well with behavior training, since calmer dogs learn faster and respond better.

If your dog takes medication, check with your vet before starting.

How much should I give my dog?

All sizes: 2 chews per day, 1 in the morning and 1 in the evening. Splitting the dose keeps gut–brain support steady through the day.

For high-stress events (fireworks, storms, vet visits), give one extra chew 30–60 minutes beforehand. The formula is non-sedative, so an occasional extra chew is fine.

Still have questions?Our team replies within 24 hours, 7 days a week.Email Us →
What dog parents say

Real Reviews. Real Dogs. Real Calm.

4.9
★★★★★
Based on 2,187 verified reviews
5 ★1,946
4 ★175
3 ★44
2 ★12
1 ★10
Most Recent ▾Write a review →
A
Amanda✓ Verified
3 days ago
★★★★★

Adopted a border collie mix from a shelter and she was out of control on walks. Barked at absolutely everything. We tried a trainer, tried CBD, nothing stuck. Three weeks on these and yesterday we walked past a group of kids without a single reaction. I actually cried.

T
Tyler✓ Verified
1 week ago
★★★★★

My Aussie completely falls apart in storms. Shaking, panting, hiding under the bed for hours. I gave him one of these 30 minutes before a big storm rolled in last week and he stayed on the couch with me the whole time. That has never happened.

L
Lisa✓ Verified
2 weeks ago
★★★★★

Honestly bought these for anxiety, but the biggest surprise was her stools. She used to have soft, messy stools every other day and now they're normal. Had no idea her gut was that off. She also just seems calmer overall.

M
Marcus✓ Verified
3 weeks ago
★★★★☆

Honest review. My lab is 11 and has been anxious his whole life. These help, but it's subtle. He's definitely calmer in the evenings and sleeps more deeply. Not a miracle, but noticeable. 4 stars because it takes a few weeks.

R
Rebecca✓ Verified
1 month ago
★★★★★

My dog used to lose his mind every time the mail carrier came. Barking, tearing through the house, wound up for an hour afterwards. Started these a month ago and now he barks once and goes back to his bed. Still can't believe it.

D
Danielle✓ Verified
1 month ago
★★★★★

Our rescue paced at 3am every single night, and we hadn't slept properly in months. Two weeks in and she's sleeping through the night. I almost don't want to jinx it by posting this.

J
Joe✓ Verified
6 weeks ago
★★★★★

Before this I was paying $180 a month for prescription anxiety meds for my golden. These cost a fraction of that and honestly work better. No zombie effect, he's still himself, just not vibrating out of his skin. Do the math.

S
Sarah✓ Verified
2 months ago
★★★★★

The vet kept saying allergies for my Frenchie's constant scratching. After reading about the gut–skin connection I tried these. Three weeks in and the scratching is about 70% gone. Amazing that a chew helped where steroids didn't.

Happy dogHappy dogHappy dogHappy dogHappy dogHappy dogHappy dogHappy dog

Notice nothing?
Money back.

Give Splyrd Calm 90 days. Don't see a difference? Get a full refund on your first order, even if the jar is empty. No fine print.

Try Splyrd Calm Risk-Free →