The main function of loofah water is to replenish water, tighten skin and wrinkle; Bitter gourd water has the function of anti-inflammatory and acne control; Cucumber controls water and oil, which is suitable for neutral to oily skin. I have mixed oily skin. I have used all three kinds of water. Personally, I think cucumber has the best effect of water control and oil control. I felt a little oily after using loofah water. Bitter gourd water doesn't smell good, and the oil control effect is not so good. But the specific choice of water still depends on your skin. I hope these are helpful to you.