Calmerceuticals Collagen sachets — Wild Berry and Mango & Mandarin flavours surrounded by fresh fruit and juice splashes
4.8
Trusted by 21,873 customers
437,000+ sachets served
ONE SACHET. YOUR MICROBIOME, TAKEN SERIOUSLY.

Microbiome-FirstLongevity Gut+ Support

60B Live Probiotics10B PostbioticsevaBiome™ EternaGen Complex
60B Live Probiotics10B PostbioticsevaBiome™ EternaGen Complex
Up to 90% reduction in inflammatory markers*
Up to 67% increase in brain antioxidant protection*
Gut bacteria & SCFA levels doubled for better digestion*
Learning & memory performance improved by over 80%*
SELECT FLAVOR:
  • The complete 12-week peak performance protocol
  • Free Welcome Kit (AUD$354.00 in value)
  • Maximum savings - lowest price per serving
  • Cancel or pause anytime
  • The Full Transformation Guarantee.If you don't see measurable results in 90 days, we'll refund every cent - no questions, no return required.
WELCOME KIT - ARRIVES WITH FIRST ORDER
50ml Hair Food
$149.00
50ml Hair Food
5x Bonus Sachets
$34.00
5x Bonus Sachets
Calm Mixer
$49.00
Calm Mixer
PeriCalm
$139.00
PeriCalm
Hormone Balance & Comfort
Total welcome kit value: $354.00 — yours free with your first order.
90-Day Money Back
If you don't see results, we refund every cent.
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Free express shipping, Australia-wide.
Cancel Anytime
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What You'll Feel

Calmer, Less Bloated Digestion

Gut bacteria and SCFA balance rebuild with daily use, easing bloating and supporting regularity.

Steadier Energy, Less Afternoon Crash

Gut–brain signalling supports more consistent energy through the day.

Supports a Healthy Stress Response

evaBiome™ EternaGen polyphenols support alertness and calm under everyday stress.

Stronger Gut-Barrier Resilience

Reinforced gut-barrier integrity and a healthy inflammatory response, day after day.

Real Women. Real Results.

The Science

The Formula

VogueVanity FairForbes7NewsMarie ClaireWoman's Day
VogueVanity FairForbes7NewsMarie ClaireWoman's Day

Longevity Gut+, in their words.

Verified. Unedited.*

— Excellent

I started taking Longevity three months ago after struggling with severe inflammation in my right shoulder and arm. The pain was constant, I had very limited movement and was seriously considering booking an ultrasound and going down the cortisone injection route. I wanted to try one more thing before going that far. I'm so glad I did. Fast forward three months and I've regained almost 90% of my movement back. I'm completely pain-free, I'm back in the gym lifting weights, and as a total bonus my gut health has improved dramatically too. I honestly didn't expect results this significant. Longevity is now a non-negotiable part of my morning routine and I recommend it to everyone.

Maria G. · January 2026 · VerifiedLongevity Gut+
— Excellent

I take Longevity first thing every morning and the difference in how I feel day-to-day has been genuinely significant. My gut health has improved so much, the bloating I used to deal with constantly is basically gone. But the biggest thing for me is my joints. I have hypermobility, which means my joints are always aching and causing me grief. Since starting Longevity I've had next to no joint pain or inflammation. I didn't realise how much I'd normalised living with that discomfort until it was gone. I feel like a different person. This is the first supplement I've taken where I've actually noticed a real, tangible difference.

Natasha J. · February 2026 · VerifiedLongevity Gut+
— Excellent

I've suffered from IBS for years and have tried so many different things to manage it, with very mixed results. I started taking Longevity first thing in the morning on an empty stomach, about 30 minutes before my coffee, and within a few weeks I noticed a real shift. The flare-ups became less frequent, the discomfort reduced, and now I genuinely don't think about my IBS the way I used to. It's just not something that dominates my day anymore. I also feel less bloated overall and my energy in the mornings has improved. It's become such a simple, easy part of my routine and the results have been worth every cent.

Dounia B. · March 2026 · VerifiedLongevity Gut+
— Excellent

I was a bit sceptical at first, I've tried a lot of wellness products and most of them don't deliver on their promises. But Longevity has genuinely surprised me. I feel more balanced and energised throughout the day, and that mid-afternoon slump I used to get has basically disappeared. My digestion feels smoother, I'm sleeping better, and I just feel more like myself. It's hard to put into words but it's made a real, noticeable difference to my daily routine. I've been recommending it to my friends and family ever since.

Sarah C. · April 2026 · VerifiedLongevity Gut+
— Excellent

I started Longevity hoping it might help with my gut health, but I wasn't expecting the other benefits that came with it. My sleep has improved noticeably, I'm falling asleep faster and waking up feeling more rested. My focus throughout the day is sharper, and I just have this overall sense of feeling healthier from within. It's hard to attribute it to one specific thing but since starting Longevity everything just feels more in balance. I feel like I'm actually nourishing my body properly for the first time in a long time. Absolutely worth it.

Natalie · May 2026 · VerifiedLongevity Gut+
— Excellent

I've been taking Longevity for about two months now and the most noticeable change has been in my energy levels. They're so much more consistent throughout the day, no more crashing after lunch, no more reaching for a second coffee at 3pm. I also feel more in control of my health in general, which is hard to explain but it's a real feeling. My digestion has improved, I'm less bloated, and I feel like my body is actually absorbing nutrients the way it should. It's become one of those products I genuinely couldn't imagine going without.

Emily · June 2026 · VerifiedLongevity Gut+
— Excellent

I've been using Longevity consistently for the past two months and the improvements have been steady and real. My recovery after exercise is noticeably better, I'm not as sore the next day and I feel like I bounce back faster. My energy and vitality have both improved, and my gut feels calmer and more settled than it has in years. What I appreciate most is that this doesn't feel like a quick fix, it feels like something that's actually supporting my health long-term. It's a smart investment and one I'll be continuing for the foreseeable future.

Isabella · July 2026 · VerifiedLongevity Gut+
4.8 - EXCELLENT
from 259 verified reviews
The Science

Why most probiotics fail,
and why Longevity Gut+ doesn't.

The difference isn't the CFU count on the label. It's whether the strains survive, colonise, and are fed once they get there.

The Problem

Generic probiotics never make it to your gut.

1–2BCFU typical dose in generic probiotics, often a single undisclosed strain
  • 01

    Destroyed before they arrive

    Most probiotic capsules aren't formulated to survive stomach acid. The bacteria die before they ever reach the intestines, where they're actually needed.

  • 02

    No fuel, no support

    Even strains that do survive have nothing to feed on. Without prebiotics and postbiotics alongside them, colonisation is inconsistent and short-lived.

  • 03

    Why years of "probiotic" habits don't work

    It's not the number on the label. It's whether the strains are named, dosed, and supported enough to actually take hold.

THE FIX

Longevity Gut+ is engineered as a Triple-Biotic System.

60BCFU across 4 named, clinically studied strains, per sachet
  • 01

    Prebiotics, probiotics, postbiotics — together

    The evaBiome™ EternaGen Complex primes the gut environment the probiotic strains need to survive, while 10 billion postbiotic units go to work alongside them.

  • 02

    Delivered where it counts

    Four named strains at 60 billion CFU, formulated to support microbiome diversity and gut-barrier integrity, not just survive the trip.

  • 03

    Disclosed, not proprietary

    Every strain and every count is on the label. Nothing sits behind a "proprietary blend."

"Same word. Completely different molecule."

That is the entire difference.

Formulated. Dosed. Disclosed.

Longevity Gut+ is built from clinically studied probiotic, postbiotic and polyphenol research — delivered at the dose the label actually says.

Live Probiotic Cultures
60B
CFU per sachet across 4 named, clinically studied strains
Postbiotic Metabolites
10B
Bioactive units from the evaBiome™ EternaGen Complex
Triple-Biotic System
3-in-1
Prebiotic, probiotic and postbiotic support in a single daily dose
Polyphenol Sources
9
Bio-fermented fruit & plant sources in the EternaGen Complex

Formulated from ingredients studied in independent research; not tested as a finished product. Individual results may vary.

MOST PROBIOTICS ARE DESTROYED BEFORE THEY GET THERE. LONGEVITY GUT+ WAS ENGINEERED TO SURVIVE.

The Gut Support That Actually Colonises.

Generic Probiotic
Calmerceuticals
Why it matters
Probiotic dose
1–2 Billion CFUHidden in a blend
60 Billion CFUOn the label
If you cannot see the count, you cannot know if there's enough to survive digestion.
Strain count
UnspecifiedNo clinical backing
4 Named StrainsClinically studied
Undisclosed strains carry no clinical evidence. Named, dosed strains do.
Does it reach your gut
DestroyedBy stomach acid
EngineeredTo survive & colonise
Probiotics that die in transit do nothing — regardless of the CFU count.
Postbiotics
AbsentOr undisclosed
10 Billion UnitsPostbiotic metabolites
Postbiotics work immediately, without needing to survive or colonise first.
Prebiotic support
Not includedNo fuel for strains
evaBiome™ EternaGen9 bio-fermented sources
Probiotic strains need fuel to colonise. Most brands leave this out entirely.
Label transparency
Proprietary blendCounts hidden
Fully DisclosedEvery strain & count labelled
Anyone can print "probiotic blend." What's actually disclosed is what matters.
THE FORMULA

Clinically studied actives.
Nothing proprietary.

Every strain named. Every count disclosed. Nothing hidden behind a blend.

01
4-Strain Probiotic Complex
L. Plantarum, B. Longum, L. Reuteri, L. Casei
60 Billion CFU
Clinically Studied Strains

Supports microbiome diversity and gut–barrier integrity

02
Postbiotic Metabolites
From the EternaGen Complex
10 Billion Units
Postbiotic Dose

Works immediately — no survival or colonisation required

03
evaBiome™ EternaGen Complex
Bio-Fermented Polyphenol Blend
9 Sources
Apple, Kiwifruit, Cranberry & more

Primes the gut environment so probiotic strains can colonise

04
Himalayan Rock Salt
Electrolyte
Included
Every Sachet

Supports hydration alongside your daily gut routine

Zero fat · Zero added sugar · Nothing proprietary

What One Sachet Supports

One system.
Four visible outcomes.

Gut

Less bloating. Steadier digestion.

Energy

Steadier energy, no crash.

Immunity

Supports immune & gut-barrier integrity.

Balance

Supports a healthy inflammatory response.

One sachet. One daily ritual.

Calmerceuticals Replaces
4 Supplements

One sachet. One daily ritual. Multi-strain probiotics, postbiotics, and prebiotic polyphenols in a single drink.Here's what you'd otherwise take separately.

One Sachet
1 daily drink
Mix. Sip. Done in 30 seconds.
=
Otherwise You'd Swallow
7 Supplements, every day
Across 4 separate products.
The breakdown — what's in your sachet vs. the supplements it replaces
4-Strain Probiotic Complex (60 Billion CFU)
replaces 2 Capsules
Postbiotic Metabolites (10 Billion Units)
replaces 2 Capsules
evaBiome™ EternaGen Complex (9 Sources)
replaces 2 Capsules
Himalayan Rock Salt (Electrolyte)
replaces 1 Tablet
1 REFRESHING DRINK OR 7 PILLSAll in one daily ritual

Backed by world-class scientific expertise

The Founder's Story

Built by someone who refused
to compromise on what she puts in.

A health-first philosophy. A clean, clinical formula. Hear it in her own words.

Rose Rayner
Founder · Calmerceuticals

I'm a functional health girl - there's no smarter system on the planet than your body.

So I created something incredibly clean and effective - with absolutely no fillers. Not just whacking collagen into a sachet and calling it a product.

We're not a beauty brand. We're a health brand. Skin isn't on the outside - it's from within. That's where we nourish it.

— Rose Rayner
Founder
480k+
SACHETS PURCHASED
3M+
Servings Worldwide
4.8/5
Average Rating
Our Promise

30-Day Starter Kit

Feel it, or get your money back.

90Day

Guarantee · Quarterly Plan

Three full months to experience the difference. If you don't feel it — complete refund, no questions.

90-Day GuaranteeQuarterly plan
28-Day GuaranteeMonthly plan
Free Shipping →Free express shipping on every order, Australia-wide.
Cancel Anytime →Pause or cancel in one click.

FAQ

Everything important, without the clutter.

The Science

The Formula

Quality & Safety

Ordering & Guarantee