Abstract: The disclosure relates to cosmetic compositions, particularly concentrated hair care compositions in the form of a paste for shampooing and/or conditioning the hair. In one aspect, a shampoo composition is provided, wherein the shampoo composition is in the form of a paste; the shampoo composition comprises at least one surfactant, at least one organic solvent and optionally at least one thickener and/or at least one emollient, wherein the shampoo composition is free of, or substantially free of, added water. In another aspect, a hair conditioner is provided, wherein the conditioner composition is in the form of a paste; the conditioner composition comprises at least one thickener, at least one organic solvent, at least one emulsifier and rheology modifier, at least one emollient and at least one conditioning agent, wherein the conditioner composition is free of, or substantially free of, added water.