First, the environment is different. ZhangJike is a sports star that everyone loves and is very familiar with. He often receives table tennis training, usually indoors, but this training alone is not enough. He must also receive some outdoor sports training. Plus, he is an outdoor sports enthusiast himself. If he doesn't wear sunscreen, he will naturally be much darker. On the other hand, Li Jiaqi works indoors. Usually, the wind can't blow and the rain can't fall. During the day, I mainly check manuscripts or samples indoors, and live broadcast with goods at night. I don't have much contact with the sun, and my natural skin color will be much whiter. Another important reason is the genetic problem, that is, Li Jiaqi's original skin color will be very white, which is determined by genes.
Second, the degree of maintenance is different. ZhangJike is mainly training. In his eyes, the most important thing is table tennis. He shouldn't care too much about his life. He usually does a lot of exercise and often basks in the sun. In this case, it will naturally be a lot darker, and there is no need to maintain it or repair it after drying. On the other hand, Li Jiaqi has done a lot of research on skin care and beauty, and he also takes care of himself. After all, he also depends on his face to eat, so paying attention to maintaining his face will be much whiter.
The above is my own opinion. If you have any other opinions, please feel free to communicate with me.