Guerlain No 21 Eyeshadow Blending Brush What It Is Inspired by Guerlain makeup artists, Fluid & Powder Foundation Brush N°21 perfectly combines an exquisite, high-quality design with precise application offering a flawless makeup finish. What It Does These extremely soft yet strong bristles create a flexible shape allowing fluid and powder foundations to be worked with a light touch, guaranteeing a result that blends seamlessly with skin and facial contours. Collection 3 other Face Brushes and 2 Eye Brushes are also available for the flawless application of our products when creating the entire makeup look. How To Use For flawless application and a perfect makeup look: Take up a small amount of eyeshadow with Brush n°21. Apply to the upper eyelid in back-and-forth circular movements to add the color evenly. To allow the colors to fuse together and create a natural ombré effect, use the same brush to blend the edges of the eyeshadow, using light and gentle movements. This technique creates a perfectly blended, harmonious finish to eye makeup. Proposition 65 warning for California residents