What it is: A synthetic-bristle eyeliner brush with a slim, finely tapered tip. Why it's different: Ideal for use with gel or pressed powder eyeliner or eyeshadow formulas, this brush is designed with firm bristles for flawless and precise lining. How to use: Dip the tip of the brush into your gel or powder formula and apply as close to the lashline as possible. Reapply for a thicker line if desired. For wet lining, dampen the brush slightly then pick up your powder formula. Synthetic hair