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USP 62

Non-Sterile Product Test For Specified Microorganisms

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USP 62 –  Microbiological Examination of Non-Sterile Products: Test for Specified Microorganisms

USP 62 testing is performed to determine the presence of specified microorganisms in non-sterile products.

In 2009, United States Pharmacopeia (USP) issued two standards namely USP <61> and USP <62> for microbiological examination of non-sterile products.

USP 62 test is specifically designed to identify specified microbial contaminants present in cosmetic and personal care products. In simple words, this test ensures that the product is safe to use and does not pose any health risk to the patients.

USP 62 Testing

USP 62 Test Method

  • In USP 62 method, first step involves the enrichment of samples in Soybean Casien Digest Broth (Tryptic Soy Broth), or other appropriate media, and then streaked on selective agars for determination of specified microorganisms.
  • Prior to routine specified microorganisms testing in USP 62, suitability testing is completed. This test utilizes neutralization and dilution techniques to ensure that the growth of suspected (tested) microorganisms is not inhibited by antimicrobial agents that may already be present in the given product sample.

At Microbe Investigations, we offer both USP 61 and USP 62 tests for microbiological examination of non-sterile products. 

Our microbiology experts work closely with our customers to fully understand their requirements, offering both standardized and customised methods to suit all their testing needs. We also provide a range of microbiology testing services in diverse areas like textilesdisinfectants and cosmetics.

For more information or to request a quote on USP 62 test, contact our experts here.


USP 62 test is performed to determine the presence or absence of specific microorganisms present in non- sterile samples.

USP 62 test is applicable to non-sterile pharmaceuticals and other non-sterile products such as cosmetics and personal care products.

The USP 62 test takes 1-2 weeks to complete.

We test for USP 62 using the following microbial strains: Pseudomonas aeruginosa (ATCC 15442), Escherichia coli (ATCC 8739), Staphylococcus aureus (ATCC 6538P), Enterococcus hirae (ATCC 10541), Klebsiella pneumoniae (ATCC 4352), MRSA (ATCC 33591), Salmonella enterica ( ATCC 10708), Candida Albicans (MTCC 3017). Additional strains can be added on request.

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