Since I’m indoors, I just reapply once with the same sunscreen. I don’t use makeup.
In the morning for my first application, I do 3 finger lengths.
Then for my reapplication, I do 2 finger lengths. I use less because I notice pilling, plus I don’t like the greasy/sticky feel. I wash my hands, then just reapply onto my skin. (I do know that some people like to rinse their face first or spray with a mist).
I’m using the Purito centella sunscreen (which was part of the sunscreen controversy). I’m just trying to use it up. It has a creamy texture. Currently, my skin is more on the dry side since I’ve been on tretinoin.