I used to only have a policy against ordering food items from amazon but after I ordered a couple bottles of Neutrogena face wash (standard stuff we've always used) and it made several people in my family break out immediately after using it I won't order any soaps or toiletry products either. If Amazon could guarantee there was no comingling I'd pay extra for some things for it.

They've actually been proactive in removing items that are reported as dangerous. I had my eye on a juicer, but a review had posted that they noticed some plastic shavings showing up in their juice.

The next day, the product was listed as no longer available.

N=1, but there does seem to be an effort.

That's reactive, not proactive.