Comment by kerkeslager

I'd like to believe that this is Amazon actually trying to crack down on fake supplements on their website, but it coincides too neatly with a noticeable increase in presence of the Solimo brand, Amazon's own supplement brand.

So Amazon's model here looks like:

1. Allow sellers to sell counterfeit products, so they can take a cut of profits from both legitimate and fake inventory.

2. Copy the best-selling products after they've been product tested, and compete against their own customers (sellers on their platform).

3. Undermine the credibility of their competition by warning that their competitors' products might be counterfeits.