We Test. You Decide.

As consumers, we'd like to think that the vitamins and supplements we buy are effective and safe. In reality, this isn't always the case.

Green Glass Labs is an independent company that tests supplements. We find out whether products have what they claim and if they have any harmful ingredients or contaminants. Then, we grade and rank those products, write reports, and publish that information for free, so consumers can confidently buy the best supplements for their health.