Is it true that pheromones/chemistry have more impact on attraction than physical appearances?

Yesterday I read that pheromones, or chemistry, influence attraction before physical appearances come into play and are ultimately more important. This is why we sometimes feel ourselves drawn to people that we may not necessarily find physically attractive, or might not normally “go for.”

Is that accurate? I’ve tried searching, but most of the sites that are discussing this seem like questionable sources, but I am curious to know whether or not it is true.