Microcrystalline Wax
Cera Microcristallina
Petroleum-derived wax, more flexible than paraffin.
How solid is the pore-clogging number
Microcrystalline Wax rates 2 of 5 — fine for most, occasionally a problem for very acne-prone skin. The rating is graded moderate. Reasonably supported, but from fewer or less direct sources than the best-established ratings.
It describes the raw ingredient in isolation. In a finished product, how much is present and where it sits in the list matter just as much. Check a whole label to see it in context.