Probiotic Testing Services
Enumeration and identification of probiotic strains. Potency at time of manufacture and end of shelf life.
Probiotic testing verifies the identity, viability, and potency of probiotic strains in dietary supplements using culture-based enumeration and 16S rRNA molecular identification, ensuring that CFU (Colony-Forming Unit) counts on labels accurately reflect the product at both manufacture and end of shelf life.
Probiotic products require specialized testing to validate that the claimed strains are present, viable, and at the labeled potency at both manufacture and throughout shelf life. Qalitex Laboratories provides ISO 17025 accredited probiotic testing using culture-based and molecular methods to deliver accurate, defensible results.
Probiotic Enumeration
We perform total viable count (TVC) and species-specific enumeration for commonly used probiotic strains including Lactobacillus, Bifidobacterium, Streptococcus, and Saccharomyces. Results are reported in CFU/g or CFU per serving as required for label compliance.
Strain Identification
We use 16S rRNA sequencing and culture-based identification to confirm strain identity at the species level. Essential for brands making specific strain claims on labels (e.g., Lactobacillus acidophilus NCFM).
Probiotic Stability Testing
Probiotic viability decreases over time. Our stability studies test products at defined intervals to establish accurate expiration dating, ensuring your potency claim is valid at end of shelf life — as required by NPA, USP, and industry standards.
Ensayos y métodos incluidos
- ✓ Total viable count (CFU/g)
- ✓ Species-specific enumeration
- ✓ Strain identification (16S rRNA)
- ✓ End-of-shelf-life potency
- ✓ Real-time & accelerated stability
Normas y conformidad regulatoria
- USP <2022> Microbial enumeration
- NPA probiotic standards
- FDA cGMP 21 CFR Part 111
- ISO 17025 accreditation
Sectores que atendemos
- Probiotic supplement brands
- Functional foods with probiotics
- Private label supplement manufacturers
- Amazon FBA probiotic sellers
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How are probiotic CFU counts measured?
Probiotic CFU (Colony-Forming Units) are measured through culture-based enumeration methods that count viable organisms. Qalitex performs total viable count and species-specific enumeration for Lactobacillus, Bifidobacterium, Streptococcus, and Saccharomyces strains.
Why is probiotic stability testing important?
Probiotic viability decreases over time, meaning the CFU count at manufacture may differ significantly from the count at expiration. Stability testing at defined intervals ensures your potency claim is valid at end of shelf life — as required by NPA, USP, and industry standards.
Can Qalitex identify specific probiotic strains?
Yes, Qalitex uses 16S rRNA sequencing and culture-based identification to confirm probiotic strain identity at the species level. This is essential for brands making specific strain claims on labels.
Páginas de ensayos especializados
Probiotic Testing Near Irvine & San Diego, CA — ISO 17025 Accredited Lab
probiotic testing near me
Probiotic Testing for FDA compliance
probiotic testing for FDA compliance
Probiotic Testing for Amazon listing approval
probiotic testing for Amazon listing approval
Probiotic Testing for Regulatory submission
probiotic testing for regulatory submission
Probiotic Testing for Product launch
probiotic testing for product launch
Probiotic Testing for Quality control
probiotic testing for quality control
Por qué las marcas eligen Qalitex para probiotic testing services
Entrega en 48 h
CoA firmado en 48–72 horas
Acceso directo al científico
Hable con el químico que realiza sus ensayos
Sin pedido mínimo
1 SKU o 100 — la misma calidad
Artículos relacionados
Probiotic Stability Testing: Why CFU Counts Fall Short of Label Claims Before Expiration
Most probiotic label claims are made at manufacture, not expiration. Learn why CFU counts drop and how supplement brands can build defensible stability data.
Dietary SupplementsProbiotic CFU Counts: Why Your Label Claim May Not Survive to the Expiration Date
Most probiotic supplements lose 90% of their live cultures before expiration. Here's what supplement brands must know about CFU stability testing.
Dietary SupplementsProbiotic CFU Testing: Viability, Strain Verification, and the Shelf-Life Math Brands Get Wrong
Plate count methods, strain-level ID by PCR, and stability curves that prove CFU claims at expiry — what probiotic supplement brands need from their testing lab.
Dietary SupplementsYour Probiotic Supplement May Already Be Half Dead by the Time You Buy It
CFU counts in probiotic supplements can drop 50–90% before expiration. Learn what stability testing reveals about real-world potency and what to demand from your supplier.
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Solicitar presupuesto →Aviso legal: Los resultados de los ensayos proporcionados por Qalitex Laboratories son datos analíticos destinados a fines de control de calidad. No constituyen asesoramiento legal, regulatorio ni de conformidad. Los clientes son los únicos responsables de garantizar que sus productos cumplen todas las normativas federales, estatales y locales aplicables.