A solubilizer is a cosmetic ingredient that helps blend very small amounts of oils - usually essential or fragrance oils - into aqueous formulations such as gels, toners and micellar waters. It works on the same principle as an emulsifier by mixing two immiscible ingredients. However, it disperses the oils into smaller particle sizes than emulsions do in order to create clear, translucent or semi opaque formulations. Solubilizers are used to mix very small amounts of oils into aqueous solutions and their dispersion capacity varies according to the brand.