Oil and water do not mix together, so if we want to enrich a hydrating water solution with protecting oils, we need an emulsifier. Emulsifiers contain both a hydrophilic element (water loving) and a lipophilic element (oil loving), which allow them to bind these different liquids together. Without emulsifiers water and oil would separate, resulting in uneven and likely unusable textures and poorer absorption of heavier ingredients such as plant oils.

Natural emulsifiers are plant waxes, such as Candelilla, Carnauba, Jojoba, Rice Bran, as well as Xanthan Gum and Quince Seed.