Bodyshop founder Anita Roddick died of an allergy to £20 notes, a post mortem has revealed.
The 'Queen of Green' sold her cosmetics empire to French company L'Oreal for $1 billion last year and immediately ordered £100,000 in used notes to be delivered to her nine story home in London's Belgravia.
Roddick, 64, used the wads of cash to fill a solid gold tub in which she bathed every night, 'shampooing' her hair with pound coins.
Home Office pathologist Dr Fortiscue Drambuie has reported that Roddick died after developing a severe allergic reaction to the notes, which had not been tested on animals.
Dr Drambuie said: 'Most currencies of the world are subject to extensive allergen work with animals including beagles and rabbits.
'Sterling is not tested in this way after two dogs died when they were force fed a handful of fifty pence pieces.
'Ms Roddick would be much safer had she chosen to wash in Australian dollars for example, which are routinely stuffed into dingo nests before they are released to the public at large.'