Head to head
Florastor Probiotic discloses more: 5 out of 6 against 3. That is a statement about Culturelle Pro Strength Probiotics's label, not about the product.
| Criterion | Culturelle Pro Strength Probiotics | Florastor Probiotic | Agreement |
|---|---|---|---|
| 1. Exact amount for every active ingredient No proprietary blend appears anywhere on the Supplement Facts panel. | 1 ✓ | 1 ✓ | same |
| 2. Standardization percentage stated Wherever potency depends on a percentage, such as % withanolides, the label states it. | 1 ✓ | 1 ✓ | same |
| 3. Chemical form or strain named “Magnesium glycinate,” not “magnesium.” For probiotics, every organism carries a strain designation. | 1 ✓ | 1 ✓ | same |
| 4. Dose within the trial range The disclosed dose falls inside the range human trials used for the outcome the product claims. | 0 ✗ | 1 ✓ | differ |
| 5. Certificate of analysis is public A third-party certificate is reachable with no email gate and no account. | 0 ✗ | 0 ✗ | same |
| 6. Per-serving amounts are complete Serving size and servings per container are both on the panel. | 0 ✗ | 1 ✓ | differ |
| Disclosure score | 3/6 | 5/6 |
The pair splits on 2 of the six criteria. The reasoning below is the same text that appears on each product page.
Culturelle Pro Strength Probiotics: Inulin 200 mg against an independent reference range of 12 g/d for functional constipation (Puhlmann 2025, PMID 41233756), roughly sixty times below the studied dose. Probiotics excluded per methodology.
Florastor Probiotic: Under methodology v1.12, the first product in the sample to take this point. The panel declares 500 mg of preparation rather than CFU, so the probiotic unit mismatch does not arise, and 500 mg falls at the floor of the 500-1000 mg/day range set by independent adult trials of this strain (Seddik 2019 PMID 30694338; Sjomina 2023 PMID 37942999; Salazar-Parra 2023 PMID 37400812). Maev 2025 excluded from setting the range under the independence rule: it dosed Enterol, a Biocodex product, and Biocodex manufactures Florastor. The outcome objection is published alongside the v1.12 ruling.
Culturelle Pro Strength Probiotics: Serving size 'One (1) Capsule' is stated but servings per container is absent from the Supplement Facts panel, the same failure as Seed DS-01.
Florastor Probiotic: Serving size 2 capsules and servings per container 50 are both printed on the panel. First product in the sample to take this point.
Both labels were scored the same way on the remaining 4.
Culturelle Pro Strength Probiotics: Both actives carry exact amounts, Lactobacillus rhamnosus GG 46 mg (12 billion CFUs) and Inulin (Chicory Root Extract) 200 mg. No proprietary blend on the panel. First product in the set to take this point.
Florastor Probiotic: The single active carries an exact amount, Saccharomyces boulardii CNCM I-745 500 mg. No proprietary blend on the panel.
Culturelle Pro Strength Probiotics: No standardization-dependent ingredient. The probiotic is CFU-declared and inulin is named as the compound with its source in parentheses, so the quantified item is the inulin, not an extract of graded purity. This is the distinction from BIOMA, where the label declared 100 mg of corn cob extract rather than a stated XOS weight.
Florastor Probiotic: No standardization-dependent ingredient in the formula.
Culturelle Pro Strength Probiotics: Strain designation present (rhamnosus GG), and inulin is a defined compound with its source named.
Florastor Probiotic: CNCM I-745 is a culture depositary designation (Collection Nationale de Cultures de Microorganismes), not a species name or a marketing name.
Culturelle Pro Strength Probiotics: No publicly accessible third-party certificate of analysis located 2026-09-26 (product page images, culturelle.com, site-scoped search, open web search); recorded as a negative finding, not a claim that none exists.
Florastor Probiotic: No publicly accessible third-party certificate of analysis located 2026-09-26. The search covered the 10 listing images, florastor.com navigation and footer (no Quality, Testing, Lab Results or Transparency link exists), the florastor.com FAQ page, and a site-scoped web search for 'certificate of analysis'. Recorded as a negative finding, not a claim that none exists.