Rather than indicating hair colour, educational background or height, suitors tick boxes indicating geographical or industrial desires.
They could estimate with an accuracy of more than 80% whether a person's hair colour was blonde or brown.
In the study, the authors used Hirisplex to predict hair colour phenotypes in a sample drawn from three European populations.
At the Sassy hair salon in downtown Beijing, long-time hairstylist Hong Haiting says women are the ones driving sales of hair colour.
On average, their prediction accuracy was 69.5% for blonde hair, 78.5% for brown, 80% for red and 87.5% for black hair colour.
Predicting phenotypes - outward traits such as hair colour or eye colour - from DNA information is an emerging field in forensics.
She also recommended ways to help keep my hair colour and gave me a trim to help with growing out my hair.
The researchers studied DNA and hair colour information from hundreds of Europeans.
They investigated genes previously known to influence the differences in hair colour.
The study paves the way for a forensic test that could estimate the hair colour of a suspect from DNA left at a crime scene.
Elisabeth Cornwell, of the university's perception lab, then used "ageing" software to reproduce the natural effects of growing old on skin texture, hairline and hair colour.
If every party leader sports the same outfit and hair colour, it's easy to blend in and dodge blame for the failure of any particular policy, Prof Tsang says.
"We identified 13 'DNA markers' from 11 genes that are informative to predict a person's hair colour, " said Professor Kayser, chair of the Department of Forensic Molecular Biology at Erasmus.
But its second observation is that, so far as can be determined, the traditional definition of race the tendency of people living in different parts of the world to have different skin colour, hair colour and physiognomy has no wider ramifications in areas such as intelligence.
Scientists have developed a forensic test that can predict both the hair and eye colour of a possible suspect using DNA left at a crime scene.
In addition to the normal targets of money, jewels, cars and videos, there is a new trend in the city towards stealing items such as Crazy Colour hair-dye, iced buns and biscuits.
He told BBC News that the journal article described everything needed to establish the test in a forensic lab, but that the team was also in touch with industry regarding their knowledge about hair and eye colour prediction.
Now, only middle-aged women over 40 colour their hair every month.
In some of America's courts this has, to the fury of the forensic scientists involved, led to previously admissible forensic techniques notably handwriting and hair analysis (the examination of features like the colour and microscopic structure of human hair found at the scene of the crime) in particular being deemed unscientific.
Oldman is sporting a pink shirt, his Commissioner Gordon moustache (he is currently filming the latest Batman movie, The Dark Knight Rises) and a pair of heavy-framed, light brown glasses, which match the colour of his hair.
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The test system includes the six DNA markers previously used in a test for eye colour known as Irisplex, combining them with predictive markers for hair.
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