Youngblood Crease Luxe Brush YB11 The Crease Brush is an exquisite soft-touch brush that is handcrafted from premium Taklon synthetic fibers for artists. The Crease Brush mixes and adds color to the outer edges and creases of your eyes with incredible softness and superb precision. Using its short, precise fibers to add color to the outer end and crease of the eyes. HOW TO USE Use to apply eyeshadow to the outside corner of the lid and along the socket bone. Instructions for cleaning: Use warm water and mild soap to wash the brush. Lay flat and let it dry fully.