Customers are two-thirds more likely to leave a generous tip to waitresses who wear red lips,a new research has revealed.
However,the finding hold true for only male customers.
Sociologists from the Universite de Bretagne-Sud,France,tracked the tips left for seven waitresses over two months against the variously coloured lipsticks they wore.
In almost 450 transactions,the waitresses who wore pink or brown lipstick,or none at all got tips on average of about 30 per cent of the time.
But when the waitresses put on red lipstick,male customers tipped half the time – and left more money,the Daily Mail reported.
There was no significant change among female customers,however.
The difference is,of course,thought to be all down to that most basic of human motivations: sex.
Red lips,the Times reports the researchers as saying,are associated with an indication of oestrogen levels,sexual arousal and health.
They say their study has practical implications for female employees and recommended lipstick as a means of enhancing their incomes,especially in bars or restaurants where men go.
In 2000,a study found waitresses who were more attractive made more money. In 2009 research showed brunette waitresses were less successful than blondes.
That study also showed tips decreased in inverse proportion to waitresses body size – except were size was restricted to their busts.
The results of the latest study were published in the International Journal of Hospitality Management.