These surfactants have their hydrophilic head and their hydrophobic tails, and so they form these micelles around the dirt, which is what grabs onto dirt and oil, and helps it to remove it from the hair and the scalp.

这些表面活性剂有亲水的头部和疏水的尾部，所以它们在污垢周围形成胶束，这些胶束可以吸附污垢和油脂，并帮助它们从头发和头皮上清除。