Joanna Lumley, Joss Stone, and Ricky Gervais have joined a campaign to stop Botox testing on animals.

Some reports claim that the anti-wrinkle treatment has been experimented on mice.

“'I hate the idea that people wanting to be beautiful and smooth should use such an ugly and cruel product,” said Joanna Lumley.

Pop star Joss Stone commented: “'They are not trying to cure cancer here this is about smoothing the wrinkles on the faces of women and men. How many innocent animals have to suffer?”