Factually correct. I recall seeing studies that the reaction to someone's raw body odor of the opposite gender can determine how compatible you are with them. Thus, all Speed dating should be replaced with Sniff dating.
It is NOT factually correct, those "human pheromone" studies are bunk. There is no peer reviewed evidence that humans produce pheromones, and even if we did, we lack the facilities to perceive them.
But of course the manosphere, as they are inclined to do, took a study of dubious quality that confirms their preconceived notions, and based their life style around it. Now you have a bunch of young men skipping showers in the assumption that it will make women more attracted to them. Just ridiculous.