Most of the time, squalane is associated with facial cosmetic products. However, it can also be perfectly used in other areas. For example, it is ideal to moisturize your hair, making it easy to comb and giving it a healthy shine. Therefore, it can often be found in conditioners, leave-in treatments, hair oils, or serums.
Due to the moisturizing effect of squalane, it also has a positive effect on the extensibility and elasticity of the skin. So if you would like to prevent your skin from having stretch marks during pregnancy for example, you may look, for oils that contain squalane.
Source: herbliz.com