Hello, Sorry for the dumb question.
Is it something you buy in powder and mix with water?
There are all sorts of options. You can buy powder, cubes, paste/gel, liquid…
Most people buy liquid. You can get single serve or larger boxes or cans, store brand generic or pricey organic. Personally, I despise bone broth, I think it’s nasty, so I used to drink regular broth when I first started. Whatever you like/tolerate is fine 🤷