Brad Pitt has stopped using soap.

The 'World War Z' actor has decided to forgo traditional methods of washing and is reportedly cleaning himself with a combination of lemons, water and apple cider vinegar, as he thinks it is better for the environment.

A source said: ''Brad says he's read up on the toxins of soap - especially the antibacterial ones - and feels that using them and antiperspirants is not only bad for the planet, but it also speeds up the ageing process in humans.''

However, the star's move hasn't been such a hit with his fiancee Angelina Jolie - who says he smells ''like a sheepdog'' - and their six children; Maddox, 12, Pax, nine, Zahara, eight, Shiloh, seven and five-year-old twins Knox and Vivienne.

The source continued: ''Angelina was revolted - and their kids even started calling him 'Stinky Daddy'.

''Angie agreed to humour him only as long as they weren't on the same continent.''

Brad, 49 is currently filming 'Fury' in London, while Angelina, 38, is directing her second movie, 'Unbroken', in Australia. They are said to be planning to meet up in Hong Kong before Christmas.