Nicole Kidman has been described as looking like a bat by a leading Canadian Botox expert.

Dr Martin Braun criticises the actress for giving the Botox industry a bad name with her over-use of the anti-wrinkle treatment.

And he isn’t buying Nicole’s recent claims that her line-free look is "completely natural".

Dr Braun told the Australian cosmetic medicine conference in Queensland: "Nicole seems to get her Botox done two or three weeks before a big event so when she, for instance, goes up on stage to collect her Academy Award she looks frozen and strange.

"She looks like a bat with too much of a brow lift, the middle of the brow's been dropped, she's crying when she accepts her Oscar but nothing is moving.

"That's really doing nothing to help our job because we've got women coming to us saying that's what we don't want to look like."

Fellow expert, Dr Gabrielle Caswell, from the Cosmetic Physicians Society of Australasia, agreed that Nicole "was using a little too much, especially in the forehead."

Dr Braun said he believed that 99 per cent of Hollywood stars - including Angelina Jolie - are devoted Botox fans - "they just don't like admitting it, that's all".