Cosmetics Formulation Development

in the shower oil formula Oil Soap 45 Coconut Oil 15 Castor oil 10 Almond Oil 10 Grape Seed Oil 10 Jojoba 5 Oil Blender 3 Vitamin E 1 น้ำหอม 1 so that the scent and color does not change and can be stored for a longer time Do I have to add anything?

Hello, I must admit น้ำมันธรรมชาติ has a shelf life limitation. If you want to extend the life Consider choosing oils that last longer than others, for example Fractionated Coconut Oil will last longer than other oils as selected by members in the formula.