Denatonium ethanol has been denatured using denatonium benzoate. The common name for this chemical, "denat"onium, alludes to this application. Denatonium is commonly included in placebo medications used in clinical trials to match the bitter taste of certain medications. Denatonium also discourages consumption of harmful alcohols like methanol, and additives like ethylene glycol. Denatonium is used in rubbing alcohol as an inactive ingredient. It is also added to many kinds of harmful liquids including solvents (such as nail polish remover), paints, varnishes, toiletries and other personal care items, special nail polish for preventing nail biting, and various other household products. It is
Nail polish royal house preferred the colors gold and silver. However, red and black eventually replaced these metallic colors as royal favorites. During the Ming dynasty, nail polish was often made from a mixture that included beeswax, egg whites, gelatin, vegetable dyes, and gum arabic. In Egypt, the lower classes wore pale colors, whereas high society painted their nails a reddish brown color, with henna. Mummified pharaohs also had their nails painted with henna. Colored nail polish did not make an appearance until the 1920s. Early nail polish formulas were created using basic ingredients such as lavender oil, Carmine, oxide tin, and