Running on the treadmill for an hour every night takes about 15 minutes to get sweaty. Can you lose face by running like this? You don't sweat much on your stomach. Can you lose weight?
If you just want to face-lift thin belly, running alone is useless. Face-lifting is usually done by face-lifting exercises. In thin belly's words, eat less first, and then sit-ups. It works from both the front and the back. I am a dancer myself. It works at both ends, but I have to insist. Generally do as required, and it will be very tiring to do 10 times.