On this page
At a glance
| Quick fact | Details |
|---|---|
| Official name since 2020 | Lactiplantibacillus plantarum |
| Natural home | Fermented plant foods; human gut |
| Role in FemiCore | Supporting probiotic; robust and versatile |
| Amount in FemiCore | Not disclosed |
| Evidence level | Good for some gut outcomes; early for urinary |
| Main cautions | Seriously ill or immunocompromised people |
What is L. plantarum?
L. plantarum is a lactic acid bacterium known for its flexibility: it thrives in a wide range of environments, from pickled vegetables and sourdough to the human gut. It tends to survive stomach acid and bile relatively well, which is one reason it is popular in supplements.
Why it is included in FemiCore
Its robustness makes it a common choice in multi-strain blends. The seller’s references include a pilot study in children that examined a specific L. plantarum strain (PCS26) alongside standard treatment for urinary tract infections and their recurrence.
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What the research shows
L. plantarum strains have been studied extensively for digestive health. For the urinary tract, research is early: the pilot study cited by the seller was small, involved children, and tested a named strain, so it cannot be applied directly to adult women or to FemiCore’s unnamed strain. Broader reviews have not found clear evidence that probiotics prevent UTIs.
The dose problem: weight, not CFU
FemiCore lists its five probiotics together as a 50 mg blend. Probiotic potency is normally described in colony-forming units (CFU), the number of live organisms able to multiply, along with a specific strain code. A weight figure includes the bacteria plus the carrier powder they are dried with, so it does not tell you how many live L. plantarum cells are in each capsule, or whether they survive until the expiry date. Because benefits are strain- and dose-specific, NIH cautions that it is often unknown which probiotic products help, at what dose, and for whom.
Can oral probiotics reach the urinary tract?
When you swallow a probiotic, it passes through the stomach and intestines. Some researchers think that lactobacilli can move from the gut to the vaginal and perineal area, which may in turn influence the urinary tract. This route is plausible but not fully established, and results vary widely between people. It is one reason why oral probiotics for urinary health remain an open research question rather than a proven approach. A 2015 Cochrane review found no clear evidence that probiotics, as studied so far, reduce UTIs.
Safety
L. plantarum is a member of a bacterial group with a long history of apparently safe use in healthy people, including in fermented foods. NIH notes that the risks of probiotics are higher for people with severe illness or weakened immune systems, and that some products have contained organisms not listed on the label. Possible mild side effects include gas and bloating during the first days.
Ask a doctor first if you: are undergoing chemotherapy, take immunosuppressants, have had an organ transplant, have a central venous catheter, or are seriously ill.
Interactions
Antibiotics can kill probiotic bacteria. If you are prescribed antibiotics, ask your clinician whether to pause FemiCore or space the doses. People on immunosuppressants should seek advice before taking any live probiotic.
Everyday ways to support your own lactobacilli
Supplements are only one influence on your microbiome. Day-to-day habits matter too, and they cost little:
- Use antibiotics only when prescribed, and finish the course as directed.
- Avoid douching and scented intimate products, which can disturb the vaginal microbiome.
- Wear breathable cotton underwear and change out of damp clothing promptly.
- Include fermented foods such as plain yogurt or kefir, if they suit you.
- Stay well hydrated during the day and urinate after sex, a simple step clinicians often suggest for women prone to UTIs.
These habits support a healthy environment regardless of whether you choose to take FemiCore.
Its role in the FemiCore formula
L. plantarum adds resilience to the blend and broad gut-health potential. Its direct link to bladder control is weak, and it is best seen as a supporting ingredient.
Bottom line
L. plantarum is a sturdy, well-researched gut probiotic with only early, strain-specific evidence for urinary health. For the whole picture, see the FemiCore ingredients page and our research summary.
Ready to decide?
Packages start at $49 per bottle when you choose six, with free US shipping and a 60-day money-back guarantee from the seller. Check the latest price and stock on the seller’s secure checkout.
Check availability & price →Paid link: we may earn a commission at no extra cost to you. Sold by the seller via BuyGoods, not by this site.
Frequently asked questions
How much L. plantarum is in FemiCore?
The amount is not disclosed. L. plantarum is one of five species in a 50 mg probiotic blend, and the label does not give a CFU count or strain code.
Is L. plantarum safe?
For most healthy adults, L. plantarum is considered low risk, with mild gas or bloating possible at first. People who are seriously ill or immunocompromised should ask a doctor before taking any probiotic.
What foods contain L. plantarum?
It is common in naturally fermented vegetables such as sauerkraut, kimchi and some pickles, as well as in sourdough starters.
Sources
Last reviewed and updated: October 20, 2026.
*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.