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.
1 If you use the moisturizer first, your skin will not be able to absorb the vitamin c serum. 2  Vitamin C serums are oil free preparations that are perfect for balancing oily skin by exfoliating naturally.