cosmetic

adj

1. Imparting or improving beauty, particularly the beauty of the complexion.

   “a cosmetic preparation”

   “Firſt, rob'd in white, the nymph intent adores / With head uncover'd, the coſmetic pow'rs.”

2. External or superficial; pertaining only to the surface or appearance of something.

   “Fortunately, the damage to the house was mostly cosmetic and a bit of paint covered it nicely.”

noun

1. Any substances applied to enhance the external color or texture of the skin, e.g. lipstick, eyeshadow, eyeliner.

   “These endocrine disruptors are everywhere: plastics, shampoos, cosmetics, cushions, pesticides, canned foods and A.T.M. receipts. They often aren’t on labels and can be difficult to avoid.”

2. A feature existing only on the surface.
3. An intangible influence that improves the overall perception of some thing or situation.

   “All depends upon circumstances—anger as much as any thing else. Interest is your only true cosmetic for smoothing the brow.”