Margot Robbie has been spoiling us with red carpet appearances over the last year and, despite the busy press schedule for the Barbie movie, her skin always looks flawless.The secret (aside from excellent genes)? The ZIIP Halo beauty tool.The ZIIP Halo is a handheld gadget about the size of a phone that uses microcurrent and nanocurrent to lift and tone the facial muscles while also helping to repair and rejuvenate the skin. Also counting Jennifer Aniston and Eva Mendes as fans, it often sells out, but it's back in stock on the ZIIP website and Currentbody now for £379.