Yes, nail polishes do contain flammable ingredients. However, once the polish is dried, it is a very low safety hazard. Still, you must read the ingredients and instructions very carefully to know the intensity of the chemicals’ flammability. There are also products available in the marketplace that are not flammable at all, but you need to compromise on other factors. Yes, because of one ingredient available in your nail paints bottle, the product becomes flammable. However, the misshape with flammable products that we have observed is a few and that too due to lack of awareness. Understand the product before buying, and leave no reason for complaints thereafter.