Actually, no. The jar salsa is just too runny and spicy.
You don't need to use it, but the extra fresh ingredients are delicious.
It's basically ultra finely chopped onion, green pepper, tomato, small amount of cucumber and fresh cilantro.
To keep it fresh, squirt lime juice on it, mix it well.
The cucumber, very small amount, (no skin, no seed) believe it or not, you don't taste, but it provides a cool fresh texture against the raw onion which also should be finely diced.
Most all grocery stores sell this.