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A three-layer model of skin has been developed and validated under the harsh conditions of wrinkling. It has been shown that a three-layer model better simulates the wrinkling of skin as compared with models of fewer layers. The model has several applications, including simulating skin aging and the design of more realistic artificial skin. The model can also be used to study the interaction of surgical scalpels or razors with human skin with a view to improving their design.

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