Our gold standard for study? Lee Kum Kee’s version (if you’re just too lazy to read on, you can buy a jar here). A close study of various ingredients—some more chemical than others—brought me back to a core list of ingredients…
Best for salsas and moles.
Oleoresin Capsicum is available in various concentrations, typically measured in Scoville Heat Units (SHU), which quantify the level of spiciness or heat in a pepper or pepper-derived product. The higher the SHU value, the greater the spiciness.