Mineral Oil
Mineral oil is popular in various skincare products, but that does not mean that its safe for your skin.
In fact, when speaking to Allure, biochemist Paula Simpson explained why mineral oil is used and how it can damage your skin: "Mineral oil belongs to the class of chemicals called hydrocarbons, which are compounds containing only carbon and hydrogen. Typical hydrocarbons are petrolatum, paraffin, and mineral oil, all of which are widely used as emollients because of their low volatility and smoothing texture when applied to the skin."
However, she continues, "because of the barrier effect it has on skin, mineral oil can also clog pores."
The article continues, quoting dermatologist Ava Shamban, "[C]reams that combine mineral oil and paraffin can actually damage the skin barrier and increase water loss."
Not only does mineral oil clog pores, but it can also lead to other types of skin problems like sun damage.
Celebrity aesthetician Sonya Dakar explained to Allure, "It's derived from petroleum and does not absorb into the skin—its molecular size is simply too big. As a result, mineral oil remains on the surface of skin, making it a reflector of the sun, which can lead to more sun damage and discoloration."
That's not to say that all oils are bad for your skin.
Instead, check here for the 5 best facial oils that are actually good for your skin.