An foaming agent comprising a non-ionic surfactant, zwitterionic surfactant, and free of anionic surfactants which is suitable for use in personal care products, e.g., dentifrice compositions,e.g., for use in the treatment and/or alleviation of xerostomia.本發明有關一種發泡劑,其包括非離子界面活性劑、兩性離子界面活性劑、且無陰離子界面活性劑,其適合用於個人護理產品,例如用於治療及/或減輕口乾病之潔齒劑組成物。