“Anything [with] bristles that are too short is not good for applying bronzer,” said Sir John, who believes denser makeup brushes will create obvious stripes on the skin. The vibe he goes for on his celebrity clients is more diffused, seamless bronzer that looks so natural, it’s virtually undetectable. To achieve this, he opts for a brush with long, loose bristles. Some good options are: NARS #13 Powder Brush, Rare Beauty Always An Optimist Powder Brush, or the more affordable Joah Large Powder Brush. “Make sure bristles are about an inch and a half long,” he told me. The result is much more convincing, especially on my cheeks which appeared streaky and loaded with makeup before I discovered this tip.