A brush developed, tested, and perfected by celebrity makeup artist Ariel to evenly apply and diffuse blush. Brush Coverage: Buildable Bristle Type: Synthetic What Else You Need to Know: Using his expertise, Ariel created this Morphe X Ariel A22 Signature Blush Brush that features a fluffy, tapered tip. The fluffy brush head and tapered tip allowed me to make slight shifts in my blush technique that is now the epitome of my signature look, he says.