Remove the cap from the tip of the brush and press the knock on the other side once or twice. *When using for the first time, press the knock several times until the oil seeps into the brush tip. Once the oil has seeped into the brush, apply it to your nails, around your cuticles, and your fingertips. *Do not use if you have cuts or inflammation. Lightly press the base of your nails and massage them in circular motions to work the oil in. Wipe off the oil from the brush tip with cotton or similar and then close the cap. Do not use if you have any nail problems. Take care when using this product on sensitive skin or small children. Do not use on areas with cuts, swelling, eczema, or other problems. Pay close attention to any skin problems before use. Discontinue use if the product does not suit your skin or if any of the following occurs. Continuing use may worsen symptoms, so we recommend consulting a dermatologist. (1) If you experience any abnormalities such as redness, swelling, itching, irritation, discoloration (white spots, etc.), or darkening during use. (2) If the above-mentioned abnormalities occur on the skin where the product was used and exposed to direct sunlight. * Close the cap tightly after use. * Do not store in high temperatures, high humidity, or in direct sunlight, or where it is within reach of small children or pets. * Because it is flammable, take care to avoid fire when storing or handling. * Use as soon as possible after opening. * Do not use on any part of the body other than nails and fingertips. * Because it contains natural ingredients, the color and scent may change due to temperature changes, but this does not affect the quality. * It may become cloudy at low temperatures, but this does not affect the quality. * Please be aware that if the oil gets on clothing, gloves, etc., it may cause stains.