Welcome to part four of this series on how we might create a “no more tears” kind of shampoo bar using various anionic, non-ionic, and amphoteric surfactants. In part one, we reviewed the surfactants that Alexander noted she has in her workshop – sodium cocoyl isethionate (SCI), foaming apple surfactant, decyl glucoside, and Cocamidopropyl Betaine -…
