A cleaning agent system comprising a foam dispenser and a cleaning agent in which the surfactant content of the cleaning agent comprises 95-100 wt.%. biosurfactant. The cleaning agent may be provided as a concentrate and may be provided in a bag. The foam dispenser may be a foam pump. The biosurfactant may comprise glycolipids, such as rhamnolipid, sophorolipid or mannosylerythritol lipid, or lipopeptides such as surfactin, fatty acyl glutamates or fatty acyl glycinates or combinations thereof. The carrier may be water. The cleaning agent may be a cosmetic cleaning agent, in particular for the face, body or hands. Other ingredients including thickeners, preservatives, perfumes or caring substances may be present.
