This invention discloses a new detergent. The detergent is prepared by mixing basic cleaning material with functional additive (at least one of water-soluble chitosan, chitosan hydrochloride, chitosan citrate and chitosan lactate). The content of the functional additive is 0.1-5 wt. %. The functional additive has good moisture-retaining, antibacterial, film-forming and radiation-resisting properties, and can accelerate the adsorption of nutritious components by human body cells. When the functional additive is added in the detergent, it can remove grease and pollutants on human skin or hair by physical adsorption, and can complex with heavy metals on human skin without any stimulation to skin. |