8-11.Kind of wrinkle：Expression　wrinkle
	It is a wrinkle caused when it laughs, it cries or feelings are expressed. Depth is increased, it is fixed gradually, and the wrinkle stands out with the age though it can be done by shrinking the expression muscle. The expression is formed by those about as many as 40 several expression reasons' of reaching for the face there, and shrinking and slackening mutually. The pleat and the hollow made in that case become expression wrinkles.
	The muscle of the face makes the wrinkle in the skin when it shrinks, and the expression appears along with it. The direction of the wrinkle becomes it at right angles with the muscle. Therefore, when the massage etc. and cosmetics are applied, doing along the flow of the muscle is an ideal.