If the skin is prone to redness, it is best to use NO. 100 can mask red, but 100 is really the whitest, so it's best to use it with caution.
If the skin is a little pale or you want to have an elegant makeup effect, you can use 102, and the color with partial powder will better enhance the brightness.
If it is a natural complexion, you should still choose a darker color than these two models, such as 200.
Try it on the mandible when you try the color, which is the most accurate.