1. If สารกันเสีย in the formula but kept in How long will the refrigerator keep for a long time? 2.Which active substances can nourish the skin and be สารกันเสียสารกันเสีย it be natural? สารกันเสีย which is very gentle for sensitive skin?
Hello. 1. I can't answer because it depends on the amount of germs that are contaminated. since raw material And the production process. 2. Probio-Protect™ (Lactobacillus Ferment Preservative) 3. You can use the one recommended in number 2.