To attract a man, women spend billions of dollars each year on exotic perfumes and lotions, but a new study found that their natural body smell may be the best way to capture the partner's attention.
According to the research, published in journal Psychological Science, male testosterone levels are influenced by odour signals emitted by females, particularly when they are ovulating that is when they are the most fertile.
The researchers from Florida State University said that going "au natural" may be the best way to capture a potential mate's attention, journal Science Daily reported.
The authors said, "The present research is the first to provide direct evidence that olfactory cues to female ovulation influence biological responses in men."
Smells are known to be critical to animal mating habits but this is the first research on human responses to body smell.
To understand the response that occurs in humans, psychological scientists Saul L Miller and Jon K Maner conducted two studies.
Women wore tee shirts for three nights during various phases of their menstrual cycles and male volunteers smelled one of the tee shirts that had been worn by a female participant.
In addition, some of the male volunteers smelled "control tee shirts" that had not been worn by anyone. Saliva samples for testosterone analysis were collected before and after the men smelled the shirts.