Please feel free to comment - I think you can mix and match. Because it is all oil - the formula is used
perfect c recommend using
Protec™ OX and
Protec™ UV ]
Protec™ UV in the formula to help protect
Vitamin C due to degradation and
Protec™ UV will protect
Vitamin C from Light to slow down the quality or discoloration of it. - If the formula does not contain water as a component. and every ingredient in the recipe Equipment and equipment for mixing, packaging are passed through the process of infection control. or sufficient disinfection The formula is not required.
สารกันเสีย - but in the oil-based formula To enter
สารกันเสีย can also be used
Phenoxyethanol SA or
Mild Preserved Eco - In case of mixing for own use If the mixing process is correct, clean, mixing equipment, packaging are clean, well sterilized. and quality ingredients without germs It is the same age as normal cosmetics, which is about 1-2 years from the date of mixing. unless there are any ingredients The manufacturer has clearly stated about the deterioration in various environments. It will have to calculate the expiration date to be more accurate. - In the case of producing for sale. I think I will have to send to a lab that accepts cosmetic efficacy testing. To see if the products produced are effective enough to control germs well or not. To determine the age of the product. - Item 3, have to wait for the team to give advice. Thank you.