The skin of an infant has very few wrinkles because of the large amount of elastin in the dermis and a thick layer of fat in the subcutaneous tissue.

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This is because elastin provides elasticity and helps the skin bounce back to its original shape, while the layer of fat provides a smooth surface and helps to fill in any wrinkles. Infants also have relatively plump skin due to the abundance of hyaluronic acid, which also contributes to a smooth appearance.

The Skin of an Infant Has Very Few Wrinkles Because