Mainly, the aging of the skin, caused by changes in the substance called collagen, component of the dermis and over time it loses water, and therefore, flexibility and elasticity which causes wrinkles in the skin.
Also with age there is a decrease in fat in the subcutaneous tissue, the skin loses firmness and begins to fall in the form of folds and wrinkles. In the same way, it reduces the activity of the sebaceous and sweat glands that provide fat and water, which causes dryness, marking and accentuating fine lines.
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