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Available for over a year

The invisible layer which you apply provides a barrier and could be used to treat skin conditions but also as a cosmetic improvement, to help with those unwanted wrinkles or bags under our eyes. It lasts around a day, then it needs to be reapplied. Daniel Griffith Anderson, of the Massachusetts Institute of Technology, is a member of the team that made the discovery. (Picture: invisible layer providing a barrier to the skin. Credit: Melanie Gonick/MIT )