With this test it is possible to determine, on the one hand, the increase in volume and, on the other hand, the lengthening of the eyelashes.

Human hairs are used as a substitute for eyelashes. Individual hairs are fixed in special holders to form a set of eyelashes. The measurement of hair thickness or volume is performed using laser technology.

The hair length is determined by image analysis. The eyelashes are treated with mascara in a standardized manner and again measured individually using laser technology and image analysis.