Soap brows are an ancient Hollywood technique that has recently gained popularity, and they only require two items: a mascara spoolie and a bar of soap. Simply run the spoolie through the soap, then brush it into your brows for the most beautiful feathery texture. You can also use the spoolie to draw on your eyebrows or add color to them. The soap brow trend started when Instagram user @maccosmetics posted a picture of herself with heavily penciled-in eyebrows. The image went viral and became an instant hit, with fans praising the actress' look. Shortly after, other celebrities began experimenting with their own versions of the brows, including Zendaya, Natalie Dormer, and Lucy Liu. Soap brows are not meant to be taken seriously as a daily makeup look, but rather used as a fun experiment every now and then. They are useful if you want to create a specific look, such as a dramatic eye or vampy lips, without having to apply many layers of makeup. The brows will help define your face shape and add volume to thinning hair areas. However, since they are simply made of soap, they will eventually wash off. Here is how to get a soap brow: First, find a pair of tweezers or eyebrow brushes.