One product, one panel, one record.

Thorne FloraSport 20B, 30 capsules (SKU SF818) — label audit

Two of the four strain designators were removed from the label between 2023 and 2024, and the live product page ships the degraded version. The two that were deleted are precisely the two with essentially no human literature — one of them returns zero PubMed records on two spellings, and it accounts for a quarter of the CFU.

Roman Sydorenko, Independent analyst · Last verified 31 July 2026 · Disclosures

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.

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.

Panel footnote, verbatim from the DSLD transcription: "20 billion CFUs, at time of expiration when stored as recommended". Corroborated on the product page's own feature list: "20 billion live organisms at time of expiration". Storage is room temperature, no refrigeration. This is the honest form of the claim. Worth noting alongside it: the expiry footnote is dropped from Thorne's machine-readable ingredient table, which renders as a bare "5000000000cfus".

The panel’s own words on potency, verbatim.

The panel guarantees the count through the expiration or best-by date. This is the only basis that is falsifiable by a reader holding the bottle.

Some organisms carry a printed strain designator and some are named by species only.

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.

• NIH Dietary Supplement Label Database record — DSLD 306247 (opens in a new tab) captured 20 June 2024 The current label record, on market. The artefact behind the central finding: it prints bare "Lactobacillus paracasei" and "Lactobacillus acidophilus" where the 2023 record named UALpc-04 and UALa-01, and Thorne's live page matches this degraded version.
• NIH Dietary Supplement Label Database record — DSLD 298031 (opens in a new tab) captured 25 September 2023 The superseded 2023 label, on market, UPC 6 93749 00631 2 — the hard match to SKU SF818. Both records are FloraSport 20B, 30 capsules, one daily, 250 mg blend, 20 billion CFU, so they are the same SKU across two label generations. Source for all four designators as originally printed, for the four per-strain 5 billion CFU figures, and for the at-expiry footnote verbatim. The per-strain quantities on this page are dated to this record rather than presented as current.
• Dated capture of the brand’s own page — thorne-florasport-20b-pdp-2026-07-31https://www.thorne.com/products/dp/florasport-20b — Address given, not linked: this site does not link out to the products it audits. captured 31 July 2026 Read in-browser, because the page is a fully client-rendered Nuxt application whose HTML carries an empty ld+json block and no price, and whose Wayback snapshots have the same problem. Source for the price, the SKU, the degraded live ingredient table, the "20 billion live organisms at time of expiration" feature line, the Hormone Support tag, the two sex-split athlete claims, and the footnote-stripped machine-readable table.

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.

For this product specifically, 2 organism slots carry a strain with a human RCT under the exact designator printed on the label.

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 #

$1.40 a day at the dose the label itself instructs.

Price

$42.00 USD

What that buys

30-capsule bottle (30 servings, 1 capsule daily), SKU SF818

Price checked

31 July 2026 — the source we read it fromhttps://www.thorne.com/products/dp/florasport-20b — Address given, not linked: this site does not link out to the products it audits.

For context, the median verified cost across the frozen founding cohort is $1.52 a day — about $553 a year. The two figures come off one median: 24 priced products give an even count, so the median is the mean of the two middle ones, $1.515 a day. The daily figure is that rounded to the cent; the annual figure is $1.515 × 365 = $ 552.975, rounded to the dollar. Annualising the rounded $1.52 instead gives $ 554.80, which is why the rule is printed rather than left for you to guess at.

That median runs over 24 products, not 27: three of the founding teardowns have no verifiable US price at all, and are excluded rather than estimated. It is not a median over every teardown on this site.

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.

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 #

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.

A men’s-versus-women’s label diff

The same brand’s women’s SKU has not been compared against this panel.

Whether the current 2024 label still prints per-strain CFU amounts

The 5 billion per strain figures published here come from DSLD 298031, the 2023 label. The 2024 record (306247) was checked for designators and is the source of the regression finding; whether it retains the four per-strain quantities was not separately established, so the quantities on this page are dated to the 2023 record rather than presented as current.

Any dose or citation behind the sex-split efficacy claims

The page claims "Promotes decreased percent body fat in female athletes" and "Supports a balanced inflammatory response in male athletes" with no dose and no citation attached to either.

Anything behind the "Hormone Support" benefit tag

The tag appears on the product page and no hormonal endpoint appears anywhere in the product's content. The identical unsupported tag was recorded on Thorne FloraMend in an earlier batch.

A machine-readable price or offer block

Thorne's product page is a fully client-rendered Nuxt application: the HTML contains an empty ld+json block and no price, and Wayback snapshots have the same problem. The price was read in-browser on 2026-07-31.

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:

1. 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.
2. 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.
3. 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.
4. 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.
5. 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.

Primary product record: https://www.thorne.com/products/dp/florasport-20bhttps://www.thorne.com/products/dp/florasport-20b — Address given, not linked: this site does not link out to the products it audits.