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.
Equivalent to conventional tiger top (red/black) with conventional stopper. Primary uses include serum determinations in chemistry and. immunology. For optimum specimen quality, gently invert tube 5 times after collection to. mix clot activator with blood, and allow blood to clot upright for 30 minutes before. centrifuging for 15 minutes. Size: 5.0 mL.