Daily gut routine
InfiniWell GI Prime
A three-capsule daily formula combining a yeast fermentate, a heat-killed Lactococcus postbiotic, a tributyrin ingredient and three Bacillus spore strains.
- Format
- Capsule, once a day
- Type
- Probiotic, postbiotic and prebiotic
- Cost
- $3.00 a day
- Customer rating
- 4.5 out of 5 from 32 ratings from Amazon
What the accounts we could find say
- All the gut ingredients in a single product
- Normal-sized capsules that are easy to swallow
- A change in digestion within a few weeks
There is not enough independent feedback here to call those themes reliable. Low review confidence — the Amazon 4.5 rests on 32 ratings, with seven of the eight reviews shown being Vine free-product reviews, while the brand’s own 4.9 from 994 reviews and Trustpilot’s 4.4 from 115 cover all InfiniWell products, mostly peptide, hair and skin items rather than GI Prime.
Why it might work
The label combines four kinds of ingredient. EpiCor is a fermented yeast product described as a postbiotic, meant to supply fermentation products that gut bacteria can use; Lactococcus lactis strain Plasma (IMMUSE) is heat-killed bacteria meant to activate a class of immune cells; ButyraGen is a tributyrin-based ingredient meant to be broken down into butyrate, the short-chain fatty acid that colon cells use as fuel; and three Bacillus strains are spores meant to survive stomach acid and transit the gut. The brand frames these together as supporting the gut lining and immune function. Most of the human data on these ingredients concern immune markers, cold symptoms or mild digestive complaints, and the Bacillus coagulans benefit shown in irritable bowel syndrome belongs to other named strains, not these. With no per-strain counts and no cell count for the Lactococcus ingredient, the label does not let a reader check how much of each is present.
What the research supports
There is no trial of this formula; the evidence is for its separate branded ingredients, mostly sponsored by their makers. EpiCor yeast fermentate at the same 500 mg dose improved bloating and fullness scores in the moderate-severity subgroup of an 80-person, six-week trial of people with gut discomfort and constipation, and a three-strain Bacillus blend with the same SNZ strain codes improved dyspepsia scores in a 60-person, 37-day trial run by the strain’s owner. A six-week virtual trial of ButyraGen at 200 mg reduced belly pain mainly in women, and the heat-killed Lactococcus ingredient has immune and cold-symptom trials but none on gut symptoms.
What the label discloses
The three Bacillus strains each carry a strain code, but the 12 billion CFU is one blend total with no per-strain count, and ButyraGen is listed as a single 200 mg line without its tributyrin and fiber split. The brand publishes a certificate of analysis for one 2025 lot from an independent laboratory covering heavy metals, microbes, the probiotic count and some allergens. No contains or free-from statement appears on the page or panel.
Who this tends to suit
We match this product to people reporting bloating, general abdominal discomfort and irregular bowel habits. It fits someone whose priority is day-to-day comfort, a steady daily routine or regularity. Whether it is the best fit for you depends on the rest of your answers — what you have already tried, what format you will take, and anything that has to be ruled out.
Where it may not fit
The label supports gluten-free, dairy-free and no added sweeteners. We flag this product for anyone pregnant or breastfeeding or taking prescription medication, and the quiz removes it rather than recommending it in those cases. That is a caution about who should be deciding, not a claim about the product. A capsule only works if you will take it once a day, every day.
Side effects and what to be aware of
Reviewers on Amazon mention a strong butyric, buttery smell, the price and the three-capsule daily serving, and a couple report no noticeable effect. Most Amazon reviews are from Vine free-product reviewers. The brand advises consulting a physician if pregnant, nursing, taking medication or with a medical condition, and says it is not for children. Amazon purchases are non-returnable.
Common questions
Does InfiniWell GI Prime work?
No trial of the finished product was found. Its ingredients have separate studies: EpiCor at 500 mg improved bloating and fullness in the moderate subgroup of an 80-person trial, a three-strain Bacillus blend with the same SNZ codes improved dyspepsia scores in a 60-person trial run by the strain’s owner, and ButyraGen at 200 mg reduced belly pain mainly in women in a company-sponsored six-week trial. Amazon reviewers give it 4.5 from 32 ratings, with some reporting a gut benefit and some none.
Is InfiniWell GI Prime safe, and what are the side effects?
The brand says it is generally well tolerated when used as directed and advises consulting a physician if pregnant, nursing, taking medication or with a medical condition; it is not for children. The label lists no side effects, and Amazon reviewers mostly mention a strong butter-like smell rather than symptoms. The label carries no warning specific to the live Bacillus spores.
How much does InfiniWell GI Prime cost?
On infiniwell.com a 30-day bottle (90 capsules, three a day) is $89.95, or $76.46 on a monthly subscription, which is $3.00 or $2.55 a day. Amazon showed $71.96 on a 20% deal against the $89.95 list price. Shipping is free on US orders over $75.
InfiniWell GI Prime vs a regular probiotic?
GI Prime is not only a probiotic. Its 12 billion CFU is three Bacillus spore strains with strain codes, alongside a yeast fermentate (500 mg), a heat-killed Lactococcus ingredient (50 mg) and ButyraGen (200 mg). A regular probiotic capsule usually has live bacteria and nothing else, so the formulas differ in what is in them; no head-to-head trial exists.
What is the InfiniWell refund and subscription policy?
InfiniWell of Dallas, Texas, has a claimed Trustpilot profile (4.4 from 115 reviews, brand-wide) and publishes a certificate of analysis for one lot. The subscription is optional and can be cancelled at any time, and the refund policy gives 30 days to request a return in original condition. The Trustpilot complaints read were mostly about shipping, support response and subscription delivery timing, and Amazon purchases are non-returnable.
Before you take this. Speak to a doctor or pharmacist first if you are pregnant or breastfeeding, or taking prescription medication. Nothing on this page is medical advice, and no supplement diagnoses, treats, cures or prevents disease.
Is this the right one for you?
The quiz works out which of the products we have researched fits your symptoms, your routine and what you have already tried — and tells you plainly if none of them do.
Take the quiz →Free. Private. Nothing to sign up for.
Others we researched for the same job
These sit in the same role as InfiniWell GI Prime — daily gut routine — so they are the sensible things to weigh it against.
See all the products we have researched →
Related reading
Background on how this type of product works, read from the trial evidence.