Working Theory Exfoliation The exfoliation head mounted on the exfoliation pen comes with inlaid crystallite particles which is effective in removing dead skin and promoting skin metabolism. The exfoliation is a non-invasive way of skin care method which is safe and effective in addressing skin problems like acne, large pores and fine wrinkles. Spraying The diameter of skin pore is about 0.02--0.05mm which is easy for water molecule to enter in. With the help of the spraying function, the water molecules can be divided into smaller particles with diameters 0.3--0.5um(about 0.0003--0.0005mm) to help skin absorb in skin care nutrition and balance water intake for skin.