Castor oil
Ricinus Communis Seed Oil
Low comedogenic rating but very thick; usually diluted. Common in cleansing oils.
How solid is the pore-clogging number
Castor oil rates 1 of 5 — unlikely to clog pores for most people. The rating is graded established. Traceable to published comedogenicity testing and consistent across sources.
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.