L’Oréal and product solutions brand PCH have collaborated to create ’My UV Patch’, a stretchable sensor used to monitor the wearer’s sun exposure.

The sun sensor was designed engineered by PCH and was developed by L’Oréal alongside MC10, Inc., a leading stretchable electronics company.

The heart-shaped, peel-and-stick patch can be worn anywhere on the skin, and features blue squares that fade in colour as UV exposure becomes more harmful. The wearer will be able to take a photo of their patch and upload it to the My UV Patch mobile app, which reveals the times of day the wearer is most at risk and which areas of the skin are most vulnerable. Each patch lasts for about five days and is water-resistant.

Guive Balooch, global vice president of L’Oréal’s Technology Incubator, said, ’We’re excited to be the first beauty company entering the stretchable electronics field and to explore the many potential applications for this technology within our industry and beyond.’

My UV Patch is expected to be available to consumers later this year.