Pull out the pen head cover which is at the longer end of the body.
Rotate the tail part to let the oil soak the pen head.
When using it for the first time, rotate the tail part several times. Wait until the nourishing oil soaks the pen head, then apply it to the nail edge area. Massage with your fingers until it is absorbed.
Note: Do not get it in contact with eyes. Keep it out of the reach of children.
Storage: Store it in a cool place at room temperature. Avoid high temperatures and humidity, and keep it away from fire sources.