8-2.Cause of wrinkle：Dirt　of　epidermal
	The dirt of the surface of the skin obstructs the renewal of the skin, and makes normal skin cells easy not to be born. As a result, the decrease in the moisture retentivity is caused, dryness is caused, and it causes the wrinkle. To keep clean, correct facial cleansing doesn't allow it to lack. Let's bear no strong rub by the facial wash with strong washing power, and the stimulation facial cleansing to the skin in mind. The cleanness of the skin is one method of preventing the skin being become weak.