I shoudl take that back on the emersed, I meant grown in some dirt substrate. The packaging says it's a product of Singapore. I guess they import them so I think it can contain any dirt.
The gel is agar and is edible but I wouldn't recommend it. The bacopa had a lot of black substance stuck in the gel mixed with the root I mistaken it for dirt since the water was murky until I opened it today and cleaned it.