Cosmetics Formulation Development

I want to make infused oil to make the oil extracted from plants that I have come to make face oil. natural oils such as almond kernel oil น้ำมันมะพร้าว น้ำมันมะกอก won't last long if left unattended. สารกันเสีย or if not stored properly it will go rancid and spoil. So I want to know that 1. If you enter Vitamin E oil into the oil will help prolong life. And how long will the quality of the oil last? 2. If you want to enter สารกันเสีย suitable for sensitive skin Where should I put it in the oil? and how to use it What is the ratio? 3. Vitamin E oil is like a preservative?

Hello

1. If you enter Vitamin E oil into the oil will help extend the life and quality of the oil. How much

can help a lot? Depending on each type of oil, including important variables of oil life is to preserve For example, if stored at low temperatures It will last longer.

2. If you want to enter สารกันเสีย suitable for sensitive skin. Where should I put it in the oil? and how to use it What is the ratio?

recommend Mild Preserved Eco 1%

3. Vitamin E oil is like a preservative oil?

Vitamin E to Antioxidant prolongs life น้ำมันธรรมชาติ but not preservative which is สารกันเสีย prevent germs from occurring in the formula.