The Britain's Got Talent judge reportedly has regular anti-ageing treatments, including two Botox sessions every year.
> Simon Cowell: 'No-one will ever marry me'
The revelations are part of the latest extracts from Tom Bower's unauthorised biography The Intimate Life Of Simon Cowell, as published in The Sun.
Cowell also allegedly spends £3,000 per week on flowers and makes sure that his home has black toilet paper.
The music mogul also purchased a garden water feature that makes it appear that he can walk on water, according to Bower's book.
Cowell's long-time publicist Max Clifford has spoken of his disappointment that his client decided to co-operate with Bower for the book to be made.
The book has included revelations that Cowell had a secret romance with former X Factor judge Dannii Minogue and claims that he was "mesmerised" by Cheryl Cole.
> Simon Cowell: 'Britney Spears would be fascinating on X Factor USA'
> Simon Cowell's computer, wallet 'stolen by one-night-stand'
Watch Digital Spy auditioning for Simon Cowell and the Britain's Got Talent judges below: