MUA Brush E1 Eyeshadow This brush has a tapered, rounded edge with smooth, firm, fine fibres with a soft and dense rounded finish. Can be used to apply pressed powder or loose eye shadows and pigments to the eyes. This brush is perfect for applying MUA Single eye shadows. The first step of applying eye shadow is to apply a light colour all over your entire eye lid from lash line to brow. Cruelty free, Synthetic brushes suitable for all skin types!