When using for the first time or if the pen tip is left facing up, color may not come out easily. In this case, test the color on the back of your hand or tissue paper before use. Before use, always shake the pen gently up and down with the cap closed. If cosmetics such as eyeshadow or foundation get on the pen tip, it may cause smudges, difficulty in drawing, or the tip may harden. Therefore, be sure to wipe the pen tip clean with tissue paper after each use. Tightly close the cap until it clicks. Leaving the cap off may cause the pen tip to dry out and become unusable. When opening and closing the cap, open and close it straight to avoid damaging the tip, and make sure the tip does not touch the side of the cap. Use with caution and check for any abnormalities on your skin. If the cosmetic does not suit your skin, i.e., if you experience any of the following symptoms, discontinue use. Continuing to use the product may worsen your condition, so we recommend consulting a dermatologist. (1) If any abnormalities such as redness, swelling, itchiness, irritation, discoloration (white spots, etc.) or darkening occur during use. (2) If the skin on which the product was used is exposed to direct sunlight and any abnormalities such as those in (1) occur. Be careful not to get the product in your eyes. If it gets in your eyes, rinse immediately with water or lukewarm water. If any abnormalities persist, consult an ophthalmologist. Be careful not to get the liquid on your clothing. Do not store in extremely hot or cold places or in direct sunlight. Keep out of reach of infants and young children.