NOTE： The hard headed pen refill cannot draw color on your hand,please draw on your eyebrows. If you do not want to draw on your hand,please make a base (liquid foundation) on your hand first,and then draw a line to test! The characteristic of the "oil active formula"is that repeated drawing will not clump or clump,but only oil can be used for coloring. It is recommended to use an eyebrow brushto draw the eyebrows after applying the foundation makeup.