Catherine Zeta-Jones uses a $125 lotion to stop her from looking old.

The Oscar-winning actress, 38, couldn't live without Elizabeth Arden's Prevage anti-ageing cream as it keeps her looking youthful.

She said: "I think my essential beauty treatment would have to be Prevage anti-aging cream. Once you start using it you can't live without it. I use it every day."

Anti-ageing cream is not the only thing Catherine uses to maintain her stunning looks.

Last year, it was reported the 'Chicago' star put Beluga caviar on her hair to keep her locks glossy.

A source said at the time: "Catherine discovered the caviar treatment last summer and was astounded by the difference it made to her hair."

"She has an incredibly rich and vibrant natural hair color but the creamy, almost oily nature of caviar really brings this out, making the color even richer and making it so much more glossy."

However, she later denied this.

Meanwhile, Catherine - who has two children, Dylan, seven, and four-year-old Carys, with husband Michael Douglas - insists she has not yet reached her "sexiest point."

It had been reported the Welsh beauty had said she was getting too old for sex scenes and would be giving them up.

But she hit back at the claims, saying: "I didn't say that. Don't worry, don't worry you'll see it. It was a misquote but these roles are coming in now where I am playing more moms, but no, I haven't even gotten to my sexist point yet."