This mini mascara requires no special setup. It comes ready for immediate use. Compatibility:The NARS Climax Mini Mascara is generally compatible with most eye makeup products. It can be layered over an eyelash primer for enhanced volume and length. Ensure any cream or liquid eyeshadows are fully set before applying mascara to prevent smudging. It should be safe for contact lens wearers, but always consult with your optometrist if you experience any irritation. Care and Maintenance:- Always ensure the cap is securely tightened after each use to prevent the mascara from drying out.- Avoid pumping the wand in and out of the tube, as this pushes air into the container, which can dry out the formula prematurely. Instead, gently twist and pull the wand out.- Store the mascara in a cool, dry place away from direct sunlight and extreme temperatures.- For hygiene reasons, it is recommended to replace mascara every three to six months to prevent bacterial growth and maintain optimal performance.