I have the outline of this story in my head, but my ideas keep changing and I can't settle on it.
Anyway, let's write "ambergris" first. I checked it once and it was said that it is a kind of spice. After further research, I found out that it is actually a stabilizer for making spices. Hey, who gave it such a nice name? I've used it. Don't take me seriously >_<
You're not that why you need inhibitors.