The reason for the yellowing of Xingyue Bodhi is that its internal oil and oxygen are oxidized after being exposed to the air for a long time, which leads to the yellowing of its color. This process will take a year and a half. The yellow moon bodhi does not affect playing. On the contrary, this kind of Xingyue Bodhi is oily enough, the easiest to play with, and the speed of coloring and patina is faster.
If the sun, the moon and the stars are still white after a long time, it may be fake. You can rub it with cotton gloves for a while. When the bodhi surface becomes shiny and has laid a good foundation, then you can play with your hands. Every time you play Xingyue Bodhi, you can stop until it is slightly hot. Stick to playing Bodhi, and you will soon be able to draw patina.