But It Isn't In Anything I Use...Right?

So where is dibutyl phthalate found? It is found in various plastics (such as PVC piping) to make them more flexible, and nail polish. In nail polish (where it is mostly found), it is used as a solvent and a plasticizer, which stops the polish from becoming brittle. DBP is also used as fragrance in various cosmetics, but since various brands consider the scent of their product a company secret, the label on the container won't show "dibutyl phthalate" but rather "fragrance".