A quarter of women surveyed by a home hair colour brand confessed to having at least one beauty secret, while 23 per cent confided that nobody (even their friends) really knows the extent of their beautifying, the Daily Mail reported.
Of the British men polled, 87 per cent said that they don't mind if their partner keeps some of her beauty rituals hidden, a view supported by women, with 70 per cent who keep a beauty secret from their partner believing it to be key to a good relationship.
The list of beauty secrets women like to keep confidential was topped by waxing or bleaching their moustache, with 27 per cent admitting that this would be the worst beauty secret their partner could discover.
Other list toppers were the fear of partners discovering underarm hair (35 per cent), stubbly legs (23 per cent) and grey roots (12 per cent), the survey by Nice 'n Easy found.
For 90 per cent women waxing bikini line was a secret beauty regime along with whitening teeth. 79 per cent want to keep applying fake tan a secret.
Other things on the list of secret beauty rituals were plucking eyebrows (41 per cent) and colouring hair (36 per cent).