Wrinkles are folds and deformations of the skin that occur as a person ages. They are a cruel testimony to our age.
With the passing of years, the skin begins losing elasticity and flexibility causing the appearance of lines or fine marks that later become wrinkles.
Principal causes:
As we age, the sweat and sebaceous glands that for so long have provided moisture and oil for the skin, begin to wear out and stop working little by little which causes skin to lose its elasticity and moisture. This produces a dryness and cracking of the skin. The skin also begins to lose collagen. Collagen keeps the skin on the face and body in good shape. The lack of it causes sagging tissues, double chins, lines on the neck, around the mouth, and around the eyes (crows feet), and bags under the eyes, etc.
The destruction of collagen and other tissues is due to the presence of free radicals which are produced principally by the sun, the smog and an inhospitable environment.