A primary surfactant can provide good foaming ability and cleaning effectiveness, while a secondary surfactant can add qualities of mildness to prevent irritation or over-drying of the skin. To prevent shower gel ingredients from separating, emulsifiers such as diethanolamine are added.
To enhance foaming and cleaning performance, primary surfactants are used; secondary surfactants contribute to mildness to protect the skin from irritation or dryness. Emulsifiers such as diethanolamine are added to prevent shower gel ingredients from separating.