Polysorbate 20 is an solubilizer that helps other ingredients to dissolve in a solvent in which they would not normally dissolve. Such as oils into water based products, or water alone. This is most commonly used for fragrance.
How to use Polysorbate 20
We recommend the use of poly 20 at a 5:1 ratio, for instance when adding fragrance or oil to a water based product. However if the water based product contains alcohol, then you don’t need solubleizer. For example if you are adding fragrance to a body spray or perfume base, then no poly is needed.