USP<51> Antimicrobial-effectiveness Testing

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As an FDA and DEA-registered laboratory accredited to ISO/IEC 17025:2017, Leigh Labs delivers accurate, reproducible microbiological testing results supported by experienced microbiology specialists and validated test methods to help manufacturers meet compendial requirements and satisfy regulatory agencies. 

We provide USP <51> antimicrobial effectiveness testing (AET), also known as preservative efficacy testing which ensures that preservatives in non-sterile products perform effectively throughout their shelf life. Our team performs USP 51 challenge studies, method suitability testing, and preservative system evaluations, safeguarding both product integrity and consumer health.