Microbiology Testing in California — Accredited Lab
Trusted microbiology testing services in California. Our ISO 17025 accredited labs deliver precise results with 48-hour turnaround.
Quick Answer
Microbiology Testing in California is available through ISO 17025 accredited laboratories like Qalitex Labs, which operates facilities in Irvine and San Diego, California. These labs use validated analytical methods including HPLC, ICP-MS, and GC-MS to test dietary supplements, cosmetics, and food products for safety, purity, and regulatory compliance.
Qalitex Laboratories provides ISO 17025 accredited microbiology testing services to brands in California and throughout the United States. Qalitex Laboratories specializes in microbiological testing services designed to verify product safety, extend shelf life, and support regulatory compliance. Our testing protocols follow USP <61> and <62>, AOAC guidelines, and FDA regulations, ensuring your products meet the strictest standards for microbial safety. Our California-area clients benefit from proximity to our Southern California labs, enabling faster sample delivery and turnaround times as quick as 48 hours.
Why Choose Qalitex for Microbiology Testing in California
Qalitex Laboratories is one of the leading ISO 17025 accredited testing labs in Southern California, with facilities in both Irvine and San Diego. Our proximity to major California shipping hubs means faster sample receipt and quicker results. We combine state-of-the-art instrumentation (HPLC, ICP-MS, GC-MS, LC-MS/MS) with experienced scientists to deliver accurate, regulatory-ready results.
Microbial Limit Testing
Our comprehensive microbial limit tests detect and quantify total aerobic microbial counts (TAMC), total yeast and mold counts (TYMC), and specific objectionable organisms including E. coli, Salmonella, Staphylococcus aureus, and Pseudomonas aeruginosa.
Pathogen Screening
Our pathogen screening covers Salmonella, Listeria monocytogenes, E. coli O157:H7, Clostridium, and other pathogens relevant to your product type. Early detection prevents product recalls and protects consumers.
Preservative Efficacy Testing (Challenge Testing)
Preservative efficacy testing (PET), also known as challenge testing, assesses how well a product's preservative system inhibits microbial growth over time. Vital for products with water content or susceptible to contamination during use. We follow USP <51>, ISO 11930, and industry best practices.
Key Tests & Methods
Applicable Standards
Industries We Serve
How It Works
Three simple steps to your results
Submit your samples
Ship samples to our Irvine or San Diego laboratory with your order form.
Testing & analysis
Our ISO 17025 accredited scientists run validated test methods.
Receive your CoA
Get a signed Certificate of Analysis within 48–72 hours.
FAQ
Frequently Asked Questions
Where can I get microbiology testing in California?
Qalitex Laboratories operates ISO 17025 accredited labs in Irvine and San Diego, California, serving clients in California and across the US. Ship your samples to us and receive results within 48–72 hours.
How much does microbiology testing cost in California?
Testing costs vary based on the specific analyses required, sample matrix, and turnaround time. Contact Qalitex Labs for a custom quote — most standard panels start at competitive rates with volume discounts available.
Is Qalitex Laboratories ISO 17025 accredited?
Yes. Qalitex Laboratories holds ISO/IEC 17025 accreditation, the international standard for testing and calibration laboratories. This ensures our methods, equipment, and quality systems meet the highest standards of accuracy and reliability.
What is your turnaround time?
Standard turnaround is 5–7 business days. Rush service with 48-hour turnaround is available for most test types. Contact us to discuss your timeline requirements.
What types of products do you test?
Qalitex tests dietary supplements (capsules, powders, gummies, liquids), cosmetics and personal care products, food and beverage items, botanical extracts, and raw materials. We serve brands, contract manufacturers, and Amazon FBA sellers.
How do I submit samples for testing?
Ship your samples to our Irvine or San Diego laboratory with a completed sample submission form. We provide prepaid shipping labels for qualifying orders. Results are delivered electronically via secure portal.
What microbiology tests does Qalitex perform?
Qalitex performs total aerobic microbial count (TAMC), total yeast and mold count (TYMC), pathogen detection for E. coli, Salmonella, Listeria, Staphylococcus aureus, and Pseudomonas, as well as preservative efficacy testing (PET) per USP <51> and ISO 11930.
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