Composition containing urea

The invention provides a water-based composition containing urea. The urea is used as an active ingredient with a moisturizing effect, the composition further comprises glycine betaine, and the weight ratio of the urea to the glycine betaine is (1: 99)-(85: 15). The invention further discloses application of the water-based composition as a functional additive with the moisturizing effect in an external skin preparation and the external skin preparation containing the water-based composition. 本发明提供了一种含有尿素的水性组合物，其中尿素作为具有保湿功效的有效成分，所述组合物进一步包含甜菜碱，所述尿素与所述甜菜碱的重量比为1:99至85:15。本发明还公开了该水性组合物作为具有保湿作用的功效添加剂在皮肤外用剂中的应用以及包含该水性组合物的皮肤外用剂。