UNITED NEWS INTERNATIONAL (UNI) — When it comes to the laws of attraction, changes in hormones don’t factor in.

-That’s according to a new study that found a woman doesn’t suddenly swoon over certain physical features just because she’s ovulating or taking birth control.

Past research has suggested these hormone-altering elements can make women favor men with facial features considered less masculine, like a narrower jaw or thinner eyebrows.

Researchers at the University of Glasgow decided to put that theory to the test.

They asked over 500 straight women to rate different male faces based on how attractive they found them several times over the course of two years.

The results, recently published in the journal Psychological Science, found the women generally preferred men with masculine features no matter what their hormonal status was.

However, the study did find women picked slightly less-masculine faces when thinking about a long-term partner, versus a fling.