How do you make light mineral oil from heavy?

Light mineral oil is not made from heavy mineral oil. Both light and heavy mineral oils are produced by refining crude oil, but they come from different fractions during the refining process. Light mineral oil is a lower-viscosity oil than heavy mineral oil, which means it has a thinner, more fluid texture. It is commonly used in personal care products such as baby oil and cosmetics, as well as in some industrial applications.