I wouldn't buy something that is so cheap and simple to make...but that is a personal opinion...I would be afraid of what they might put in it or add to it (chemically speaking)...
But I am sure that there are some perfectly good brands that offer good quality products at a decent price. Go ahead and try it and let us know what you think
...yes, they have recently rediscovered the virtues of bone broth...it is full of natural gelatin which is one of the components of healthy joints...
If you wish to make it just go to your local butcher and ask for soup bones (they are often times free or at least very, very cheap).
Throw them into a pot of boiling water, add whatever herbs or aromatics that you like (garlic, onion, bay leaf, thyme, parsley, carrots, celery...) and let boil.
1 bone is good for about 2 cups of water...so about 3-5 bones for a large pot.
Once boiled strain and keep in a jar in the fridge...you can drink it as is or use as a base for other soups.
Sharon