I urge everyone to bookmark that blog; it is always a fascinating tour of the weirder and wonderfuller places on our planet. And let me leave you with this simply jaw-dropping video of undulatus asperatus in action.
(A sunscreen with a physical block like titanium dioxide or zinc oxide can be applied last, after a serum or moisturizer.) Apply a serum next and, finally, moisturizer if you need it. Polis also recommends serums or sunscreens with moisturizers built in because they save time.
It moisturizes so well, that I have sometimes forgotten to put moisturizer over it! I have gone through several bottles of Vinoperfect Radiance Serum over the last few years. 1 bottle lasts me about 3 months of careful use on the face and neck only. I comes with a dropper that I drop directly on my face. 2-3 drops cover the face/neck.