Highlighter (cosmetics)
Highlighter is a type of cosmetic product that reflects light. Often used for contouring, it can be applied to the face or other parts of the body to brighten the skin on a given area, create the perception of depth and angles. The product can come in a variety of forms, including powder, liquid, cream, gloss, solid stick and jelly. Highlighters became a significant tool among theater and film actors shooting or performing indoors, where natural light was not available to provide definition of facial features like cheekbones, nose, and jawline. Highlighter also offers the possibility of heightening  or diminishing a given feature to suit the character portrayed, as well as aesthetic trends. MAC Cosmetics's Strobing Cream is credited as the first highlighter product to be made available to commercial consumers. A long-time tool among makeup artists, highlighter sales saw significant gains among consumers in 2016. Some industry experts have attributed the growth in sales of highlighters and related products to the rise of social media usage, given the popularity of YouTube makeup tutorials and the proliferation of snapshot self-portraits known as selfies.