“If you want to paint your dog's nails, make sure to use quick-dry pet-safe polish and remover,” Dr. Barrack tells The Dodo. “Do not use human nail polish or remover as some brands contain dibutyl phthalate, formaldehyde and/or toluene which can be harmful to your pet's health.”
These chemicals, commonly referred to as “the toxic trio,” pose serious health risks if inhaled, licked or chewed by your pet. Even regular nail polish without these ingredients could irritate your dog or cat’s highly sensitive nasal cavity, so it’s best to find a brand specifically intended for pets. There are quite a few dog- and cat-safe nontoxic polish and polish pens on the market today with plenty of shades to choose from, so pet owners should have no problem finding a matching hue, if you must.