You can scrape the roller on one side and comb out the paint on the other. White spirit is essential if you're looking to clean oil-based paint off your roller. Just be warned that you can't pour ...

Note that if the roller cover will be used with an oil-based paint, the cover should be conditioned with the solvent used to ...

so I know it definitely removed the oil, and it did remove some makeup, but it didn't ruin the makeup on my face. The face roller is made out of real volcanic stone, and it's meant to be less ...