Applying the Lancôme Lash Idôle Mascara is straightforward. Ensure your lashes are clean and dry before application. For best results, use the curved side of the wand to lift and define your lashes from the root, then rotate to the micro-bristle side to separate and extend. While not explicitly stated as waterproof, its 24-hour wear suggests strong resistance to smudging. To remove, an oil-based makeup remover or a bi-phase eye makeup remover is recommended to gently dissolve the long-wearing formula. Store the mascara in a cool, dry place with the cap tightly sealed to prevent it from drying out. Avoid pumping the wand multiple times, as this can introduce air and dry out the product prematurely. The travel size makes it compatible with any makeup bag or purse, ensuring you can have it ready for any occasion.