LabDoor

Thought this was interesting: https://labdoor.com/

 

From the site: LabDoor buys dietary supplements and energy drinks off retail shelves and sites. Then, we send each product to an FDA-registered laboratory for a detailed chemical analysis. Our technical team then collects the laboratory results and builds algorithms to translate this data into simple grades and rankings.

 

Looks like a large part of their rankings are based on how the actual content of the supplements compares to the advertised content on the supplement labels.