Researchers from the University of Bonn in Germany showed that women who inhaled it found their partners 15 percent more attractive, Daily Mail reported.
The spray contains syntocinon, a synthetic form of the hormone oxytocin, which is naturally released in the brain when people fall in love.
Oxytocin plays a key role during childbirth, stimulates milk production in mothers, and helps them bond with babies.
The experiment involved 46 female volunteers who were in their 20s and reported being already ‘passionately in love’ with their partners.
The participants found their partners as 15 percent more attractive after inhaling the spray than after inhaling the placebo.
However, women who took contraceptive pills experienced no boost at all by the spray, for unknown reasons, the report said.