Amazon says its viral 'About You' profiles don't use outside data. Here's how to edit yours.

Amazon's 'About You' pages have gone viral with silly — often incisive — descriptions of their customers.

Bloomberg/Getty Images Amazon says its "About You" profiles use activity on its own services — not outside data.

The profile draws on purchases, searches, reviews, lists, and Alexa for Shopping conversations.

You can edit or remove a detail, but that does not erase your Amazon data.

Want to know what Amazon thinks about you? Just check out your "About You" page .

The page — essentially a customer dossier built from activity across an Amazon customer's purchase history, searches, saved lists, written reviews, and Alexa for Shopping conversations — has gone viral.

While Amazon says the editable page gives some transparency into which products it's recommending, shoppers on social media have been laughing about its amusingly specific conclusions.

One shopper, it said, has " flat buttocks, " while it told another shopper that their husband had " skinny legs.

" Our office checked out the page on Wednesday, too, and found that its conclusions were sometimes acutely accurate, and sometimes dead wrong .

There's data collection underlying those conclusions — and we've heard from plenty of readers that that makes them nervous.

Amazon says it does not collect any information from third parties for About You.

"The details on About You come from information customers share through their activity across Amazon," an Amazon spokesperson told Business Insider.

That means a shopper who regularly orders cat food may see an inference about owning a cat.

A person buying children's clothes or birthday gifts could prompt an assumption about having children.