I learned that everyone has their own unique scent, even twins but humans also smell differently from each other. The smell of your face wash can smell like candy but to others it wont. The receptors in our nose control the sensors which decides how we smell odors. There is 400 genetic codes for the receptors in our nose and many more variations of these genes. When the receptors of two people are compared, it is usually 30 percent different from each other. When one person smell an odor their receptors that are activated and the signal sent to the brain can be different from the next person.
Duke Today Staff. (2013, December). No Two People Smell the Same. Duke Today. https://today.duke.edu/2013/12/hiroodor
Sreenivas, S. (2023, May). What is Parosmia?. WebMD. https://www.webmd.com/brain/what-is-parosmia
WebMD. (n.d.). Phantosmia: Is your nose playing tricks on you?. WebMD. https://www.webmd.com/brain/what-is-phantosmia