Hello, the study team recommends more information.
สารกันแดด must be heated, heated to a sufficiently high level, usually at 70- 80 degrees depending on the type of
สารกันแดด by warming and melting into the oil in the formula. to make sure
สารกันแดด is completely soluble. In the case of the oil portion of the formula There are some items that are not heat resistant. Separate them for later after thawing.
สารกันแดด with the oil in the formulation in the heat resistant part. have been completely wait for it to cool down Then add a mixture that is not heat resistant. Shake or stir to combine?