I think what's really important is what comes from within.

In order to moisturize your skin, it's important to take care of your daily habits rather than just focusing on cosmetics. When washing your face in the morning and evening, avoid using water that's too hot and use lukewarm water. After washing your face, it's helpful to replenish moisture with toner before the moisture completely dries. Then, moisturize your skin from the inside with essence or serum and prevent moisture from evaporating with cream. It's also important to drink water frequently throughout the day to maintain moisture in your body. It's good to use a humidifier indoors to keep the air from becoming too dry. I think it's important to consistently keep up with these small routines.