@1nter4ri @Bad_Banner pheromones are released in your armpit sweat. you wouldn't know or experience this though because chinese people lack the ABCC11 gene. that's the gene that makes body odor smell (a byproduct of bacteria feeding on the sweat) and is responsible for you having different ear wax consistency than anybody else.

tldr armpit and other sweat smells from females are actually responsible for triggering olfactory bulb senses in your brain to determine if you are sexually compatible or not