●Use twice a day, morning and night, after skin care. <When using for eyelashes> ●Lightly touch the tip of the ball tip to the roots of the eyelashes and gently apply to the entire roots. *Be careful not to take too much or apply too much serum. ●Using the crest side of the brush, apply evenly to the tip of the hair. <When using around the eyes> ●Place the ball tip in the center of the eyelid, gently spread it to the left and right, and then use your fingers to blend it all over the eyelid. *When using as an eye makeup base, apply eye makeup such as eyelash curlers, mascara, and eyeshadow after the serum has dried. After use, wipe the ball tip clean with tissue paper. *It can also be used by those who have eyelash extensions.