Cosmetics Formulation Development

Hello, I would like to ask if this sunscreen formula can be mixed by hand or not. I want to try it myself. Thank you. 1.Water 44% 2. Cyclomethicone 15% 3. Titanium Dioxide 15nm Liquid 25% 4. Zinc Oxide 35nm Liquid 15% 5. Mild Preserved Eco 1%

Hello, stirring by hand in this recipe may not be a very stable formula. If people are not perfect There may be stratification of the formula in the long run. If you want to mix this formula by hand, the procedure is to mix 2+3+4 together and stir for about 10 minutes until you are sure it's well combined. Then gradually add water, little by little, into the recipe and stir well. Keep doing this until you can add all the water. Part สารกันเสีย Can be added to the recipe in the last step, stir well.