Roughly 1k away from the bund is the yuyuan market which coincidentally has lots of people.

Among many of the shops, I was most interested with this medicine shop. It contained jars full of dried roots, herbs & spices, mushrooms, teas, and other assorted powders and weird icky looking stuff. Customers would consult the herbalists behind the counter to weigh out and sometimes grind up their medicine.

I finally found out where the royal jelly gets made.