Hello, if this formula wants to add
สารกันเสีย must be sprayed and tumbled dry.
สารกันเสีย spread throughout the formula.
สารกันเสีย in powder form Must be dissolved and then sprayed to be fully effective. If blended in powder form with the formula, it will not be as effective as it should be. because it hasn't been dissolved yet. Inquire about the nature of the packaging Or request a sample of the packaging that will contain the product for sale. The staff will help suggest that it is to enter
สารกันเสีย or not. If necessary, in what format and how?