First, use a cleansing tissue to remove heavy makeup.
I stock up on Round Lab Dokdo Cleansing Tissues whenever they are on sale. They offer great value for money.
If you remove heavy makeup with a cleansing tissue first, it is good because you don't have to use cleansing foam multiple times.
Next, I wash my face with Senka's cleansing foam.
The mildly acidic product I used before was gentle but had very weak cleansing power, causing breakouts, so I switched to this product and have been using it well.