Worth knowing · Undisclosed material

Undisclosed material

Also appears on labels as: zoomierex material (polymer not named), double layer exterior (fabric not named), azo-free dyes, bpa-free plastic (polymer not named), plastic pail (polymer not named), plastic pre-filter

A line that gives you nothing to look up. The maker describes a part, a fabric or an additive by what it does or what it is free of, "BPA-free plastic", "ZoomieRex material", "antimicrobial additive", without naming what it is made of.

Watched ingredients get highlighted on every product panel you open.

Where it comes from: Not stated. We don't guess: a plastic could be any of a dozen polymers, and a fabric could be synthetic or natural.
Why it's in the product: Whatever the part does. The line tells you its job, not its material.
Safety and toxicity: This flag is about what the maker doesn't name, not a known hazard. Like a natural flavor in food, the material may be perfectly ordinary; the point is that you can't check.
Interactions and who should be careful: Where we write "(polymer not named)" or "(fabric not named)" after a line, the maker's own words stop there. If the maker names the material, on the package or its own website, the line can be read for what it is and this flag no longer applies.

General reference, not veterinary advice. Dose, breed, and existing conditions change the answer, so talk to your vet before changing what your pet eats. Think we got this wrong? Tell us and we log it publicly.