Mixing Steps and Additional Ingredients for Sunscreen Foundation Formula

Regarding the mixing steps for the sunscreen foundation formula recommended by the staff, which is primarily silicone-based, you can follow these steps:

1. Combine Oil/Silicone and Wax Phase: Add Silicone Gel Ultra Clear, Titanium Dioxide 15nm Liquid, Tribehenin (Soft Wax), Silicone Film (Medium-Wear, Soft), and Silicone Blender into a container.
2. Heat and Stir: Gently heat the mixture from step 1 (around 70-80°C) and stir continuously until the Tribehenin melts and all ingredients are well combined and homogeneous.
3. Add Powder Phase: Remove from heat and let cool slightly. Then, gradually add Silk Mica Powder (Matte) and blend or mix until evenly dispersed throughout the formula.
4. Add Other Ingredients (Optional): Once the formula has cooled further, you can add other desired ingredients, such as Essential Oil.

Adding Essential Oil

Yes, you can add Essential Oil to provide a light fragrance. It should be added in a small amount (recommended around 0.1-0.5%) and should be added as the final step after the cream has cooled down significantly to prevent the volatile oils from evaporating. Stir well to combine.

Thanaka Extract and Royal Jelly

Regarding Thanaka extract and Royal Jelly mentioned in the initial query, these extracts are typically water-soluble. The base formula provided is silicone/oil-based without a water phase. Adding water-soluble extracts directly into this type of base may cause instability or separation. If you wish to include these extracts, it might require significant modification to the base formula, such as incorporating a water phase and using appropriate emulsifiers suitable for a Water-in-Oil system to help blend the water and oil components.

Rice Bran Wax vs Polyethylene Wax

As the staff previously mentioned, you can use Rice Bran Wax instead of Polyethylene Wax in this formula. However, it will result in a different texture compared to using Polyethylene Wax. You can experiment and compare the resulting textures to find what you prefer. Regardless of which wax you use, it is important to keep the Silicone Blender in the formula at approximately 3-5% to help stabilize the ingredients and prevent separation.

The staff recommended checking the website for additional examples and mixing methods for sunscreen formulas, which can provide helpful detailed steps for various formulations.