Let’s take a closer look at sodium cocoyl isethionate (SCI), sodium lauroyl methyl isethionate (SLMI), and sodium cocoyl methyl isethionate (SCMI). These are called ester-based surfactants, and they’re related to the sulfates, sulfoacetates, and sulfonates – all called sulphur (sulfur) based surfactants – which you’ll see in a minute. These are some of my favourite…