What are Wrinkles?

Wrinkles are the sign of skin aging, extension of the skin perpendicular to the axis of the wrinkle leaves a marked line representing the bottom of the wrinkle.

 Wrinkles and sagginess appearing is a natural phenomenon of life as we age (intrinsic aging), however they can appear earlier due to exposures of UV, free radicals, and other environmental stressors (extrinsic aging). 

Expressional or known as dynamic wrinkles: The lines forming on the face where skin has to adapt to the facial muscles movements (example : smile lines) Consequently, the skin moves together with them. These cranes are visible at the age of 30, but they do not increase in number during the years; instead, they become deeper. Their direction is perpendicular to the muscular fibers’ direction.