Client Services > Methods
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 on control plates, expressed as percent inhibition.
This procedure may also be used to test for persistence of activity, as a function of time elapsed between application of active test formulation and application of active test plates.
Because no procedure for neutralization of the antimicrobial action of active ingredients can be included in the test, the agar patch method is limited to the extent that results expressed as percent inhibition do not differentiate between bacteristatic and bactericidal effects and, hence, must not be portrayed as “reductions.”
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.…