Olus Oil

Olus Oil is the INCI umbrella name for vegetable oil; this is an oil of plant origin made up mostly of fatty acid triglycerides.

The key thing to know is that it's a generic term rather than one specific oil: it refers to a vegetable oil or a blend of vegetable oils so its effect may vary depending on the sources used.

Functionally, it's an emollient that helps soften skin and works as a hydrator to prevent water loss.

This ingredient works well across a wide pH range and has a long shelf life.

You might see this ingredient show up in a "pore-clogging" list but there's no real evidence behind that. It doesn't even have a comedogenic rating from an actual study; the numbers you'll find online come from blogs citing other blogs.

Ratings for other ingredients mostly come from a 1980s rabbit ear test. This test doesn't translate well to human skin or to real products because the ingredient sits at a much lower percentage.

Some people still find it breaks them out. So if that's you, definitely trust your skin.

Fungal acne:
Because olus oil is an undefined blend, its fungal acne safety depends entirely which oils are used. A Caprylic/Capric Triglyceride-based version would be fungal acne safe while a rapeseed blend will contain longer-chain fatty acids that Malassezia can feed on.