British makeup artist Louise Young has her own line of makeup brushes, and makeup artist Hannah Martin is a huge fan. "Each brush is expertly made," she said. There are a bunch she likes from the brand, including the Louise Young Superfine Eyeliner Brush (£10) and the Tapered Socket Brush (£14.50). "There's a Louise Young brush for everything," according to Martin, and it's a bonus that they won't break the bank.