Yes. Some blends include salt, while others are labeled salt-free and explicitly state they contain no salt and no MSG.
Usage guidance typically ranges from about 1 teaspoon to 2 teaspoons per 1 pound, depending on the specific blend.
Net weights shown across the range include 2.75 ounces, 4.25 ounces, 4.3 ounces and 4.37 ounces.
They come in bottles with flip-top caps or shake/pour caps that let you flip, pinch, pour or shake to control how much you add.
Common ingredients include garlic and onion plus herbs and spices such as paprika, dill weed oil, oregano, parsley, rosemary, basil, red pepper, orange peel, lemon peel, black pepper and sea salt.