Sebum

Sebum is covered by the sebaceous gland and connected to the pore. It plays a role as a natural moisturizing cream mixed with sweat in order to prevent excessive loss of moisture. Proper sebum, therefore, is necessary to make facial skin moisturized and to keep skin healthy as it contains mineral water, the nutrition of resident virus who eats extra impurities on our skin.

The sebum tape images and result of detected images:

Sebum smeared in oil paper changes the color of paper to stronger scarlet than the original, therefore, we calculate the value using the color difference of the red areas.