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.
Before I went back on retinoids, I did a lot of research. Some doctors say to wait 30 minutes after your retinoid to put moisturizer on, others say wash your face, apply moisturizer, wait 30 minutes & then apply a pea size amount to whole face.I do the latter & keep my retin-a on my night stand, a tip I learned from a Derm's blog.efore I went back on retinoids, I did a lot of research. Some doctors say to wait 30 minutes after your retinoid to put moisturizer on, others say wash your face, apply moisturizer, wait 30 minutes & then apply a pea size amount to whole face.