One product, one panel, one record.
Florastor Advanced Immunity Probiotic & Immune Supplement, 30 vegetarian capsules (SKU 58928) — label audit
A probiotic with no CFU claim anywhere — not on the page, not in the Supplement Information block, not on the carton — dosed instead in milligrams of lyophilised yeast. And the 30-capsule box that reads like a month is 7.5 to 15 days at the label's own instructions, which puts the real cost at $1.93 to $3.86 a day.
This page is an audit of a label. It records what this product’s panel discloses, what of that could be checked against a primary record, and what could not. The score below ranks this product on that disclosure and on nothing else.
The record this page rests on
- NIH label record
- Label read on
- The most recent dated artefact behind this page. Labels change; this is how old our reading of it is.
- Cohort
- Addendum — outside the founding denominators Audited 2026-07-31, after the founding cohort of 27 was frozen. It sits outside every D27 denominator this site publishes.
- How deep this went
- Label audit — the lighter pass What the label says, what basis it gives for its CFU number, whether the strains are coded, whether a government label record exists — checked and published. No full claim inventory was written for this SKU. It is a real result, and it is a shallower one than the teardowns above it, which is why the page says so before you weigh it against them.
The Label Verifiability Score for this product
66.7 out of 100
Rank 58 of the 154 products in this audit the rubric can score.
The score measures one thing: how much of what you are buying this company tells you, and how much of that survives being checked against a source that is not the company. It does not measure whether the product works — this site holds no efficacy data of its own, and 0 of 294 organism slots in the founding cohort carry a strain with a human randomised trial for any male-specific outcome, so nobody in this category has evidence that would support a ranking by effect.
Computed over 66% of the rubric by weight — the share of the five questions below this record could answer. The remaining 2 questions are unanswered, and unanswered is not nought: they leave the divisor rather than dragging the score down. That share travels with the number and is never dropped — this score over 66% of the weight and the same score over all of it are different claims.
| Component | Weight | What was counted, and where | Fraction | Weight × fraction |
|---|---|---|---|---|
| Strain identity printed on the panel | 0.24 | 1 of 1 organism slot carries a printed strain designator. | 1 / 1 = 1.0000 | 0.2400 |
| Per-organism amount printed | 0.20 | 1 of 1 organism slot has an amount of its own; the rest are inside a blend total. | 1 / 1 = 1.0000 | 0.2000 |
| What the CFU count is measured against | 0.22 | Potency basis "no-cfu-number": CFU figure printed no, single basis stated no, basis reaches expiry no — 0 of 3. | 0 / 3 = 0.0000 | 0.0000 |
| Printed designators that lead to a human trial | 0.20 | No designator on this panel has been searched yet. | Not answered | — excluded from the divisor, not counted as nought |
| Certification confirmed at the issuer’s own register | 0.14 | Every certification on this record is brand-asserted with the register unreachable, or not yet queried. An unreachable register is a fact about the verification infrastructure, not about this brand, so it may not move its position. | Not answered | — excluded from the divisor, not counted as nought |
0.4400 — the last column added up — divided by 0.66, the weight this record could answer, is 0.6667. Multiplied by 100 and rounded to one decimal, that is the 66.7 above.
See this product’s row in the full ranking, alongside the other 153 scored products, or read what each of the five components asks and how to check it .
What this label discloses
Everything in this table is what the product itself states — on the printed panel, on the brand’s own page, or in the label record the manufacturer filed. Nothing in it is checked yet; checking is the next section.
| Disclosure | As recorded |
|---|---|
| CFU as printed | No CFU figure recorded |
| What that count is measured against | No CFU figure |
| Strain designators | All organisms coded |
| Organism slots transcribed here | 1 — the full panel |
| Marketed as | Unisex |
There is nothing to quote. No CFU figure exists on the product detail page, in the Supplement Information block, or on the carton art. The product is dosed in milligrams of lyophilised yeast — 250 mg per capsule, 500 mg per 2-capsule serving. DSLD's record for the base Florastor SKU (206744) is likewise mg-only: "Saccharomyces boulardii CNCM 1-745, 250 mg". Storage: "Keep at room temperature. Do not store in the refrigerator."
The panel’s own words on potency, verbatim.
No CFU figure appears anywhere on the panel.
Every organism on the panel carries a printed strain designator. Whether those designators lead anywhere is a separate question, answered below.
| Organism as printed | Designator as printed | Quantity as printed | What the designator resolves to | The query we ran |
|---|---|---|---|---|
| Saccharomyces boulardii | CNCM I-745 | 500 mg per 2-capsule serving (250 mg per capsule) | Not yet checked | — |
What of that is verifiable
A disclosure is verifiable when a reader can open a record that neither we nor the brand controls and see the same thing. Below is every dated artefact this page rests on. What is absent from this list is not verified, however reasonable it sounds.
- Dated capture of the brand’s own page — florastor-advanced-immunity-pdp-2026-07-31https://florastor.com/products/florastor-advanced-immunity-probiotic-immune-supplement — Address given, not linked: this site does not link out to the products it audits. captured Fetched live, in stock, HTTP 200. SKU 58928, GTIN 704142000439. Source for the Supplement Information block, the other-ingredients list, the dosing instructions, the storage statement, the claim placement, and the "65 years" versus "70 years" discrepancy against the carton. The live Shopify product endpoint on the same URL supplied price, stock and GTIN. Noted in passing: the page was rendering an out-of-stock state in HTML while that endpoint reported available true.
- Photograph of the printed panel — florastor-immunity-carton-art-2026-07-31https://florastor.com/products/florastor-advanced-immunity-probiotic-immune-supplement — Address given, not linked: this site does not link out to the products it audits. captured The brand's own carton art (Immunity-2.jpg, Immunity-3.jpg, Immunity-4.jpg on its Shopify CDN), read visually. Source for the 30-capsule count, for the four certification seals, and for the "BACKED BY 65 YEARS OF RESEARCH" line. It is also the artefact behind the central finding: no CFU figure appears on the carton either.
- NIH Dietary Supplement Label Database record — DSLD 206744 (opens in a new tab) captured The base Florastor SKU, not this one. Used for two things and nothing else: it confirms the brand's mg-only dosing convention ("Saccharomyces boulardii CNCM 1-745, 250 mg"), and it carries the label statement "For men and women" verbatim. Advanced Immunity itself has no DSLD record — a fact verified on two independent queries.
How many of its strains have a human trial for what it is sold for
Across the frozen founding cohort, 0 of 294 organism slots (0.0%) carry an organism with a human randomised controlled trial for any male-specific outcome. Not for this product — for all 27 of the founding teardowns, taken together. That is the number to hold against any men’s probiotic, including this one.
Two further founding-cohort figures for context: only 43 of 294 organism slots carry a strain with any human RCT at all under the exact code printed on the label, and only 2 of 27 products have a published human trial of the finished formula — the thing actually in the bottle. All three figures divide by the frozen cohort of 27 teardowns and 294 organism slots, never by every teardown on this site.
A word on what a designator has to clear before it counts here. The organism must be named with the exact strain code that appears in the trial, the trial must be in humans, and the code must return that trial when a reader searches it. A species name does not qualify: the trials in this field are of strains, and a species contains thousands of them.
What it costs per day
$28.97 — the daily cost has not been derived from this price.
- Price
- $28.97 USD
- What that buys
- 30-capsule box (2 capsules per serving, 1 to 2 servings daily — 7.5 to 15 days)
- Price checked
- — the source we read it fromhttps://florastor.com/products/florastor-advanced-immunity-probiotic-immune-supplement — Address given, not linked: this site does not link out to the products it audits.
What certification it holds, checked at the issuer’s own register
A badge on a bottle is a claim like any other. Every row below was checked — or not checked — at the certifier’s own public register, never at the badge. Across the frozen founding cohort, 2 of 27 products hold a certification we could confirm at the issuer — a founding-cohort figure, not a count over every teardown on this site.
| Programme | Status at the issuer | Checked |
|---|---|---|
| NSF Certified Gluten-Free | Brand-asserted, unverified | 31 July 2026 |
| NON GMO, Vegetarian (V), Titanium Dioxide Free | Not checked | 31 July 2026 |
NSF Certified Gluten-Free
The badge is displayed, but the register could not be reached to confirm it. We call this unverified, not false.
Read visually from the brand's own carton art (Immunity-4.jpg on the Florastor Shopify CDN). This is the only issuer-backed mark claimed anywhere in its batch. nsf.org returns 403 to automated requests — both the root and the certified-products endpoint — so the claim could not be checked at the register and is recorded as brand-asserted and unverified, not refuted. Scope trap worth stating plainly: this mark certifies the absence of gluten. It says nothing about yeast viability, dose, potency at expiry, or contaminants.
NON GMO, Vegetarian (V), Titanium Dioxide Free
We have not queried this register for this product. It does not mean the product holds nothing.
Three further seals on the same carton art, all self-declared. "NON GMO" is the bare adjective, not Non-GMO Project Verified. There is no contents certification, no USP verification and no Informed Choice mark on this product.
How it differs from the same brand’s women’s version
Across the fourteen same-brand men’s-versus-women’s label diffs run inside the frozen founding cohort, zero men’s or default formulas contain a probiotic strain, identified by designator, that was selected on male-specific evidence. In eight of the fourteen the sex-specific differentiator is a botanical or a mineral, and in five of the fourteen the women’s SKU is better-specified, cheaper, or both — “better-specified” meaning the panel that discloses more, never the panel with more in it. The rule behind each of those counts, and all fourteen pairs classified against it , are published in full. Diffs run on teardowns added since sit outside this fourteen, and outside the sentence above.
Every finding on this page, with the record behind it
Finding 1 no-cfu-disclosed-for-a-probiotic
There is no colony-forming-unit figure anywhere on this product — not on the page, not in the Supplement Information block, not on the carton art. The dose is 250 mg of lyophilised yeast per capsule. A buyer cannot compare that against any dosed trial in the literature, because the brand supplies no conversion.
The record: florastor.com PDP, Supplement Information block and carton art Immunity-2/3/4.jpg, all 2026-07-31; DSLD 206744 for the mg-only base SKU — open ithttps://florastor.com/products/florastor-advanced-immunity-probiotic-immune-supplement — Address given, not linked: this site does not link out to the products it audits.
Finding 2 a-30-count-box-is-seven-and-a-half-to-fifteen-days
The serving is 2 capsules, one to two times daily, so 30 capsules is 15 servings — a half-month at best and a week at worst. Effective cost is $1.93 to $3.86 a day. This is the single most consequential number on the page and it is nowhere stated in days.
The record: florastor.com PDP dosing instructions and 30-count confirmed on carton art; price $28.97 from the live Shopify product endpoint, 2026-07-31 — open ithttps://florastor.com/products/florastor-advanced-immunity-probiotic-immune-supplement — Address given, not linked: this site does not link out to the products it audits.
Finding 3 the-research-years-figure-drifts-within-the-same-product
Carton art reads "BACKED BY 65 YEARS OF RESEARCH". The product page body copy reads "Backed by 70 years of safe use and research." Same SKU, two numbers.
The record: Carton art on the brand's Shopify CDN versus florastor.com PDP body copy, both 2026-07-31 — open ithttps://florastor.com/products/florastor-advanced-immunity-probiotic-immune-supplement — Address given, not linked: this site does not link out to the products it audits.
Finding 4 number-one-selling-probiotic-strain-with-reference-on-file
The page claims "#1 selling probiotic strain worldwide†". The footnote reads in full: "† In Value. Reference on File." A market-share claim with no public source a reader can open.
The record: florastor.com PDP claim and footnote, verbatim, 2026-07-31 — open ithttps://florastor.com/products/florastor-advanced-immunity-probiotic-immune-supplement — Address given, not linked: this site does not link out to the products it audits.
Finding 5 the-immunity-positioning-is-carried-by-the-vitamins
The immune claims on this page attach to vitamin C, vitamin D3 and zinc. S. boulardii is credited with digestive balance. The product name puts the probiotic first.
The record: florastor.com PDP claim placement against the Supplement Information block, 2026-07-31 — open ithttps://florastor.com/products/florastor-advanced-immunity-probiotic-immune-supplement — Address given, not linked: this site does not link out to the products it audits.
Finding 6 zinc-and-vitamin-d-double-at-the-labels-own-maximum
Zinc is 20 mg per serving and the label permits two servings a day, so 40 mg a day. Vitamin D3 reaches 1,600 IU a day at the same maximum. These are the label's own numbers. Whether they sit at or above the Tolerable Upper Intake Level is not stated here, because the NIH fact sheet could not be read this pass.
The record: florastor.com PDP Supplement Information block and dosing instructions, 2026-07-31 — open ithttps://florastor.com/products/florastor-advanced-immunity-probiotic-immune-supplement — Address given, not linked: this site does not link out to the products it audits.
Finding 7 contains-lactose-while-declaring-itself-appropriate-for-lactose-intolerance
Other ingredients list "lactose (derived from milk)" while the same block states "Appropriate for lactose intolerance."
The record: florastor.com PDP other-ingredients list and suitability statement, both verbatim, 2026-07-31 — open ithttps://florastor.com/products/florastor-advanced-immunity-probiotic-immune-supplement — Address given, not linked: this site does not link out to the products it audits.
Finding 8 over-1000-publications-is-a-count-not-evidence
"Over 1,000 publications on Florastor's unique probiotic strain" is a publication count, not evidence for any of the uses claimed on the page.
The record: florastor.com PDP, verbatim, 2026-07-31 — open ithttps://florastor.com/products/florastor-advanced-immunity-probiotic-immune-supplement — Address given, not linked: this site does not link out to the products it audits.
What we could not verify
Every gap below is published rather than deleted. Most are derived automatically from the empty fields in this page’s own record, so a gap cannot be hidden by leaving a box blank.
- The CFU figure on the panel
- No CFU figure was recorded for this product. Either the panel prints none or it was not transcribed; this teardown does not yet distinguish between the two.
- 1 strain designator not looked up
- These designators are printed on the panel and have not been searched. They are unchecked, not empty.
- NSF Certified Gluten-Free status
- Read visually from the brand's own carton art (Immunity-4.jpg on the Florastor Shopify CDN). This is the only issuer-backed mark claimed anywhere in its batch. nsf.org returns 403 to automated requests — both the root and the certified-products endpoint — so the claim could not be checked at the register and is recorded as brand-asserted and unverified, not refuted. Scope trap worth stating plainly: this mark certifies the absence of gluten. It says nothing about yeast viability, dose, potency at expiry, or contaminants.
- NON GMO, Vegetarian (V), Titanium Dioxide Free status
- Three further seals on the same carton art, all self-declared. "NON GMO" is the bare adjective, not Non-GMO Project Verified. There is no contents certification, no USP verification and no Informed Choice mark on this product.
- A men’s-versus-women’s label diff
- The same brand’s women’s SKU has not been compared against this panel.
- A single cost per day
- The label permits 2 capsules once or twice daily, so a 30-capsule box is 15 servings and lasts 7.5 to 15 days. At $28.97 that is $1.93 a day at the minimum label dose and $3.86 at the maximum. No single figure is published because the label itself does not fix one — and the box is nowhere described in days.
- The NSF Certified Gluten-Free listing at the issuer
- nsf.org returns 403 to automated requests. The seal is on the brand's own carton art and is recorded as brand-asserted and unverified, never as refuted and never as verified.
- Whether the zinc and vitamin D3 maxima sit at or above their Tolerable Upper Intake Levels
- The NIH Office of Dietary Supplements zinc fact sheet returned 403 during this pass, so no Upper Intake Level was read at source. The arithmetic below is label-derived only — 20 mg zinc per serving at up to two servings a day is 40 mg a day, and vitamin D3 reaches 1,600 IU a day at the same maximum. Those are the label's own numbers. No "at the UL" or "exceeds the UL" language is published here, because the UL was not verified.
- Any CFU figure at all
- None exists on the page, in the Supplement Information block, or on the carton. This is the finding rather than a gap in searching, and it means the dose cannot be compared against any CFU-dosed trial.
- A federal label record for this SKU
- Absent, and the absence was verified twice. A query for "Florastor Advanced Immunity" returns 40 hits, none of them this product. A brand query for "Biocodex" returns 6 records in total — Florastor 30 ct (206744), Florastor 50 vcaps (270390), Florastor Kids Tutti-Frutti (206738), and Florastor S. boulardii Lyo 50 ct (25700) and 10 ct (25699). Advanced Immunity is absent from the brand's complete DSLD set.
How to check every line of this page yourself
Nothing on this page requires trusting us. Every claim above resolves to a record you can open:
- Open the NIH Dietary Supplement Label Database record linked at the top of this page. It is the label the manufacturer filed, not our transcription of it.
- Compare the CFU line and the suggested-use line against the disclosure table above. If they disagree with us, we are wrong and we want to know.
- Take any strain designator from the panel and run the query printed beside it. The query is published precisely so you can get a different answer than we did.
- Divide the price by the number of days the label’s own dose instructions make the container last. That arithmetic is the whole of the cost-per-day row.
- Search the certifier’s own register for this product, not for the brand. A company can participate in a programme without this product being on its list.
This product has the best strain identification in its batch and no potency figure at all.
The organism is Saccharomyces boulardii CNCM I-745 — a full public culture-collection accession from the Institut Pasteur, the kind of identifier a reader can actually look up. One organism, no proprietary blend, no strain-count inflation. On the axis this site cares about most, it is exemplary.
And there is no CFU claim anywhere. Not on the product page, not in the Supplement Information block, not on the carton art. The dose is 250 mg of lyophilised yeast per capsule — a mass, not a potency, and dead cells weigh the same as live ones. Every trial a buyer might want to compare this against is dosed in CFU. The brand supplies no conversion.
Then there is the box.
The serving is 2 capsules, one to two times daily. Thirty capsules is fifteen servings. That is 7.5 to 15 days — and the number of days appears nowhere on the page. At $28.97 the real cost is $1.93 to $3.86 a day, for a package that reads like a month.
Three smaller things. The product’s own carton says “BACKED BY 65 YEARS OF RESEARCH” while its page says “70 years”. The “#1 selling probiotic strain worldwide†” footnote reads, in full, ”† In Value. Reference on File.” And the immune claims belong to the vitamins — C, D3 and zinc — while S. boulardii is credited with digestive balance, on a product called Advanced Immunity.
Worth crediting: the one certification claimed here, NSF Certified Gluten-Free, is an issuer-backed mark rather than a bare adjective. It could not be checked — nsf.org returns 403 to automated requests — so it is recorded as asserted and unverified, not refuted. And it certifies the absence of gluten. It says nothing about whether the yeast in the capsule is alive.