Many people buy pre-made sauces. I used to be a part of that same group in the past too. In an attempt to improve health and reduce waste, I have been making my own sauces and dressings.
Once you try it, it is so easy. I threw together some soy, garlic, chilli pepper, balsamic and squeezed some lemon. It tasted delicious and saved me using an expensive pre-packaged sauce, that contains modified ingredients.
I can never see me buying a pre-made sauce again.