Cosmetics Formulation Development

Normal buy น้ำมันธรรมชาติ to make cleansing oil. There is often an explanation that the oil life is not long. If exposed to air, oxidation will cause rancidity easily. Want to know how to extend the life? Because sometimes there's a lot left. Unfortunately, it's rancid first. Do I have to add any substance to that oil? Suggest me. I will order online.

Hello, if you want to emphasize naturalness, add Rosemary Oleoresin Extract (ROE) 0.5% If synthetic ingredients are acceptable, add Vitamin E Acetate 0.1% However, life extension does not mean unlimited extension. These ingredients will help prolong life to some extent. (Can't answer how much stretched. It depends on other environmental factors as well. such as storage method storage temperature, etc.)