Microbiological
Our Services
Pentyl Labs provides comprehensive microbiological testing to support cosmetics, personal care, pharmaceuticals, nutraceuticals, food, and formulated goods such as household and cleaning products. Our services include Preservative Effectiveness Testing (PET/AET) in compliance with USP <51>, Ph. Eur. 5.1.3, and ISO 11930; Microbial Limits Testing (MLT) per USP <61>/<62> and Ph. Eur. 2.6.12/2.6.13; as well as environmental monitoring and contamination investigations. Using validated methods, controlled laboratory conditions, and industry-standard challenge organisms, we deliver accurate microbial recovery data, Certificates of Analysis, and technical support—helping clients ensure safety, stability, and global regulatory compliance across a wide range of product categories.
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Name | Description | Price | Turnaround Time | Sample Size | Quantity | Add to cart |
|---|---|---|---|---|---|---|
USP 61/62 (Total Microbial Count, Yeast and Mold, Escherichia Coli… | $150 | 2 weeks | ||||
USP 61/62 (Total Microbial Count, Yeast and Mold, Escherichia Coli… | $245 | 2 weeks | ||||
USP 61/62 suitability (this is a one-time fee; applies only… | $215 | 2 weeks | ||||
Complete ISO 11930 preservative efficacy testing with suitability and Criteria… | $500 | 6 weeks | ||||
Preservative Effectiveness Testing (PET): Evaluation of antimicrobial preservative systems in… | $500 | 8 weeks | ||||
Time Kill Testing performed according to ASTM E2315 to evaluate… | $1,000 | 4 weeks | ||||
USP 51 Challenge Test (No Suitability): Antimicrobial effectiveness testing using… | $400 | 6 weeks | ||||
USP 51 with suitability preservative effectiveness testing to assess antimicrobial… | $500 | 6 weeks | ||||
USP Microbial Testing per USP <61>, including Aerobic Plate Count… | $40 | 2 weeks | ||||
USP 922 | $200 | 2 weeks | ||||
Water Activity Testing: Determination of water activity using AOAC 978.18… | $150 | 2 weeks |
