Hi Tina - No, most of the products we test are chosen based on the brands and products that our subscribers report using in our annual reader survey (more information at https://www.consumerlab.com/reports/Vitamin_and_Supplement_Users_Survey.asp). Companies can also request that their individual products tested by ConsumerLab and they pay for that testing. More about this is found here https://www.consumerlab.com/answers/can-i-trust-consumerlabcom-how-are-its-tests-paid-for/trust_consumerlab/