Physical Sunscreen Formulation: Thick Texture Issue and Adjustment

Hello, regarding the texture issue with the Physical sunscreen you made according to the recipe, the staff and experts have provided advice.

Here is a summary of the answers to your questions:

1. If the formula is intended to be a milk lotion but results in a thick cream, is the effectiveness still the same?
   The thickness of the cream is not directly related to the sunscreen's effectiveness. However, the key factor is the proper dispersion of the sunscreen ingredients within the cream. If the sunscreen ingredients are not fully dispersed, the effectiveness might be reduced. Using a blender during mixing will help disperse the sunscreen ingredients better than mixing by hand.

2. How can I fix it? Should I increase the water or oil phase to get a milk lotion texture?
   The thick texture can be due to several factors, including the relatively high proportion of sunscreen ingredients in this formula and the inclusion of ingredients that increase viscosity.
   According to the staff's advice, the liquid sunscreen ingredients you are using (Titanium 15nm liquid and Zinc 15nm liquid) can help emulsify the formula on their own. Adding Milk Lotion Maker to the formula might contribute to increased thickness.
   Recommendation for adjustment: Try removing Milk Lotion Maker from the formula. Since the sunscreen ingredients you chose can act as emulsifiers to some extent, this might help reduce the viscosity and result in a texture closer to a milk lotion. Also, remember to use a blender for mixing to ensure complete dispersion of the sunscreen ingredients.

Hope this advice is helpful.