Make-up Recipes

I will make a lip balm that has all the ingredients that are oily. because I don't want to put สารกันเสีย but want to flavor by adding Flavor but from what I read it is soluble in water. We need to add water and สารกันเสีย added, right?

Can be dissolved in oil with a heat of 70 degrees, or really, if you put only 0.5 to 1%, it shouldn't be a problem.