I love Amazon, but refuse to buy supplements from them at this point. Fraud via co-mingling is real, and I’d rather burn down my house from a crappy wire than ingest powder from an unvetted source.
I went back to the old brick and mortar for my protein powder (though I’d also be willing to buy online from non-marketplace sources that take ownership of the supply chain).
Again, I love Amazon. But if they refuse to take responsibility for whatever arrives at my house no way is it going into my mouth...