Apply an even coat of eyeliner, the same thickness as the magnets, and make sure it’s 100% dry before magnetizing lashes for optimal hold! If you’re reusing lashes, you may have remnants of mascara or eyeliner stuck onto the tiny magnets. If you notice this, you can scratch it off with your nail or use a makeup remover on a q-tip or a makeup wipe to gently wipe it off.