CRUELTY-FREE: Revolution Beauty products are cruelty-free and always have been. We're PETA-certified and never allow animal testing at any stage of development for both ingredients and final products. HOW TO USE: Use each side separately or together. Apply a small amount of primer to your eyelid. Start with a line above your lashes, make sure you use small lines and strokes for precise application. LASTS ALL DAY: The eyeliner is extremely pigmented. It does not need re-touching throughout the day and evening. DUAL ENDED EYELINER: The professional combination in one easy to use product. Line & flick in one!. INTENSELY-PIGMENTED: ‘Line' with our super intense and smooth kohl in. ‘Flick’ with the super precise, and super intense felt liner.