Victoria Beckham is just as clued up on her beauty products as she is on her fashion – and we definitely are going to try her go-to product to maintain and extend the life of her summer tan. The mother-of-four has long been a huge fan of Weleda Skin Food, and hasn't been shy about sharing her £8.25 beauty secret with her fans.RELATED: Victoria Beckham's 30-second beauty secret to make your eyes look brighterIf Victoria plans to soak up some rays soon, she'll likely be getting lots of use of