Squalane was traditionally made from shark liver oil, and the shark version still exists. Here is the uncomfortable backstory, how to check yours is olive or sugarcane derived, and why plant squalane is so good for skin.

Most face oils are plant-based, but not all are truly vegan, and not every plant oil suits every face. Here is how to choose a vegan face oil by skin type using comedogenic ratings, and how to layer it so it locks in moisture.