What it is
Mineral Oil (also called liquid petrolatum) is a clear and odourless oil derived from petrolatum. It then undergoes a strict purifying process that gets rid of all the toxic stuff and makes it safe for use.
What it does
Mineral oil is one of the best moisturizing ingredients available. It creates a protective barrier on the skin that prevents moisture loss.
It is also a solvent used to remove makeup and temporary tattoos.
Mineral oil doesn’t clog pores. However it is an occlusive agent, and if you use it with products that have comedogenic ingredients, they will get trapped under the skin, causing pores to clog. However, it can make acne worse.