
Probiotic 40 Billion
Four named probiotic strains and prebiotic fiber in a simple daily routine, to support digestion and a balanced gut.*
- Supports digestive health and regularity*
- Helps maintain a balanced gut microbiome*
- Strain codes on the label: La-14, Bl-04, Lp-115, Lpc-37
- Vegetable capsules, made in the USA
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30-day money-back guarantee. If it isn't right for you, tell us within 30 days of delivery and we'll refund your order, even on an opened bottle.
Supplement Facts
Other ingredients: Hypromellose (vegetable capsule), Rice Maltodextrin, L-Leucine.
How to take it
Cautions
Shipping & returns
- Manufactured in the USA
- Made in a cGMP-compliant facility
- Every strain named on the label
- Vegetable capsule
Trillions of bacteria. One daily routine.
Your gut is home to a huge community of microbes that help you digest food. Modern routines (rushed meals, travel, stress) can make it hard to stay consistent. A daily probiotic is a simple way to add beneficial bacteria, every day.*
Not all probiotics tell you what's inside.
Many budget probiotics list a species name and stop there. We print the exact strain codes, the CFU count and the prebiotic on every bottle.
| Fivacore Probiotic 40 Billion | Typical budget probiotic | |
|---|---|---|
| Strains | 4 named strains: La-14, Bl-04, Lp-115, Lpc-37 | Often species names only, with no strain codes |
| Live cultures | 40 billion CFU per serving, at time of manufacture | Many supplements contain 1–10 billion CFU per dose2 |
| Prebiotic | FOS prebiotic fiber included | Varies by brand |
| Capsule | Vegetable capsule (hypromellose) | Varies by brand |
Four named strains. Plus the fiber they feed on.
Each strain is listed by its strain code, the way researchers identify them. That matters because probiotic research is often specific to the strain, not just the species, so you can look up every one.
We state 40 billion CFU at time of manufacture. Like all live cultures, counts naturally decline over time, so keep the bottle closed tight in a cool, dry place. Everyone's gut is different, and results vary from person to person.
800 mg blend, measured at time of manufacture.
A lactic acid bacterium naturally found in the human gut.
A member of the Bifidobacterium family, common in the human gut.
A hardy species also found in fermented foods like sauerkraut and kimchi.
A species found in fermented dairy and in the human gut.
A prebiotic fiber found naturally in onions, garlic and bananas.
MAKTREK®, a marine-derived polysaccharide complex.
Two capsules. Two moments.
Take 1 capsule
With a glass of water. Pairing it with something you already do daily, like lunch, makes it easy to remember.
Take the second
The serving is split across the day: one capsule by day, one in the evening.
Stay consistent
Give it two to four weeks of daily use. Your gut adjusts over time, so consistency matters more than any single dose.
Five systems. One core.
Fivacore is building a complete daily routine around five cores of health. Gut is Core 02, the system that turns what you eat into what you run on.
Try it for 30 days, risk-free
If Fivacore Probiotic 40 Billion isn't right for you, contact us within 30 days of delivery and we'll refund your order, even if the bottle is open.
How do I take it?
Take 2 capsules a day with water: one during the day and one in the evening. One bottle is a 30-day supply.
What does 40 billion CFU mean?
CFU stands for colony-forming units, the standard way to count live probiotic cells. Each 2-capsule serving contains 40 billion CFU across four strains, measured at time of manufacture. Higher isn't automatically better; the strains matter too, which is why we name every one.
Why do the strain codes matter?
Probiotic research is often specific to the strain, not just the species. La-14, Bl-04, Lp-115 and Lpc-37 are the exact strains in every capsule, so you can look up the research on each one yourself.
Will I notice anything at first?
Some people notice mild gas or bloating in the first few days as their routine settles. That's common with probiotics and usually passes. Give it two to four weeks of daily use before you judge it.
Does it need to be refrigerated?
No. Store it in a cool, dry place with the lid closed tight, away from heat and humidity (a steamy bathroom isn't ideal).
Can I take it with Colostrum or other supplements?
Yes. That's the Gut Stack: take your capsules as usual and mix a scoop of colostrum into a cold drink. Colostrum contains milk. If you're immunocompromised, pregnant, nursing, under 18, take medication or have a medical condition, check with your doctor first.
What's in it?
A 40 billion CFU probiotic blend (800 mg) of Lactobacillus acidophilus La-14, Bifidobacterium lactis Bl-04, Lactobacillus plantarum Lp-115 and Lactobacillus paracasei Lpc-37, plus a marine polysaccharide complex (MAKTREK®, 60 mg) and fructooligosaccharide prebiotic fiber (24 mg). Other ingredients: hypromellose (vegetable capsule), rice maltodextrin, L-leucine.
Where is it made?
Fivacore Probiotic 40 Billion is manufactured in the USA in a cGMP-compliant facility and ships from our US fulfillment partner.
How much is shipping?
Standard shipping is free on every US order, whether you choose one bottle or three. Orders typically arrive in 5–7 business days, and you'll get tracking by email as soon as your order ships.
What if it doesn't work for me?
You're covered by our 30-day money-back guarantee. Contact us within 30 days of delivery and we'll refund your order, even on an opened bottle.
Start your 30-day trial
Four named strains, 40 billion CFU per serving, free US shipping and a money-back guarantee.

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
- Sender R, Fuchs S, Milo R. Revised estimates for the number of human and bacteria cells in the body. PLoS Biology. 2016;14(8):e1002533.
- NIH Office of Dietary Supplements. Probiotics: Fact Sheet for Health Professionals.
