Strain Library
A comprehensive index of commercial probiotic strains, detailing their clinical backing, survivability characteristics, and specific applications.
Why do we categorize by Strain?
Specific Question Answered: Why isn't a genus-level classification enough? Because probiotic efficacy is inextricably tied to the strain. While all Lactobacillus produce lactic acid, only specific strains possess the mucosal adhesion properties required for immune modulation. A table summarizing the distinction is below.
| Taxonomic Level | Example | Clinical Relevance |
|---|---|---|
| Genus | Lactobacillus | Broad metabolic traits (e.g., lactic acid production). Useless for clinical targeting. |
| Species | L. rhamnosus | Shared genetic heritage. Still too broad to guarantee efficacy. |
| Strain | L. rhamnosus GG (ATCC 53103) | Highly Relevant. Specific clinical trials, patents, and proven health endpoints are tied exclusively to this level. |
Common Mistakes in Sourcing
- Purchasing "white-label" strains without clinical backing to save costs.
- Failing to request a Certificate of Analysis (CoA) demonstrating strain purity and viable count at time of manufacture.
Lactobacillus Strains
Bifidobacterium Strains
Yeast Probiotics
Frequently Asked Questions
Where can I find patent information for these strains?
You can use our Patent Status Checker tool for quick reference.
How do I know which strain to pick?
If you have a specific clinical goal, try our Strain Matching Quiz or consult our Clinical Research Directory.
Next Steps
If you are actively formulating, we recommend starting with our Strain Comparison Matrix to evaluate strains side-by-side. For custom formulation advice, contact our Advisory Services.
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