Aging stinks and most people hate it, which means there has never been any lack of products that claim to combat wrinkles and saggy skin. But a new “second skin,”devised in part by scientists based at the Massachusetts Institute of Technology (MIT), is not your standard age-defying formula.
Crafted from siloxane, a flexible compound made of interlaced silicon and oxygen atoms, the material is known as a crosslinked polymer layer (XPL). When spread over skin as a lotion, then activated by another ointment-like catalyst, XPL creates an invisible film that smooths wrinkles and increases the elasticity of the surface to which it is applied.

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