Agar Patch-Persistence Testing | Bioscience Labs

Agar Patch - Antimicrobial Persistence Test

Agar Patch - Antimicrobial Persistence Test

Persistence, the continuance of bactericidal or bacteristatic activity for some period of time after product use, may be a very desirable attribute for topical antimicrobial products such as antibacterial towelettes, barrier creams and liquid/gel products. The testing methodology, per ASTM E1882, uses the forearms of human subjects as the sites of product application. This test method determines the antibacterial activity and persistence of test formulations, as measured by the inhibition of a test organism on an agar surface exposed to test sites on human skin treated with the test formulation. 

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Clinical Testing Laboratory

Our start-to-finish solution for clinical trials begins with understanding our client’s end goals for the study and aiding them in the study design.  Throughout the project we remain in on-going contact with our sponsors to ensure that the project is managed with the best interest of the client in mind.  

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ASTM - E1882

Standard Test Method for Evaluation of Antimicrobial Formulations by the Agar patch Technique

This procedure can be used to evaluate formulations containing ingredients intended to inhibit growth of bacteria on intact skin and measures the difference, post-product-exposure, between numbers of bacterial colonies on active test formulation plates and numbers…

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