Sunscreen Formula Review and Mixing Instructions

Based on the revised formula you provided and the properties of the ingredients, here is a review and suggested mixing procedure:

Revised Formula

The adjusted formula with recalculated water percentage is:

• Distilled water: 62.5%
• SPF Protect Ultra: 25%
• Cyclopentasiloxane (Low-Odor): 5%
• MatteSilica: 5%
• Light Cream Maker: 1.5%
• Phenoxyethanol: 1%
• SiliSolve Plus: 0% (removed as suggested)

This formula aims for a high SPF, lightweight, non-greasy, and potentially water-resistant finish.

• SPF Protect Ultra (25%): This high concentration is intended to provide very high SPF and broad-spectrum UVA/UVB protection, suitable for frequent sun exposure. Note that there are different versions (II and III); SPF Protect Ultra III at 25% is indicated to provide SPF 70-100.
• Cyclopentasiloxane (5%): Reducing this silicone helps achieve a lighter, less slippery feel compared to the original 20%, while still providing a smooth application.
• MatteSilica (5%): This ingredient helps absorb excess oil, contributing to a matte finish and reducing the appearance of a white cast.
• Light Cream Maker (1.5%): This acts as the emulsifier to create the cream texture. It works without heat but can be used with heat.
• Phenoxyethanol (1%): This is a preservative to ensure the product remains stable and safe from microbial growth.

Potential Consideration

Light Cream Maker is generally recommended for formulas with up to 20% oil. Your formula has a total oil/silicone phase of 30% (25% SPF Protect Ultra + 5% Cyclopentasiloxane). While Light Cream Maker can bond with silicone, this high oil/silicone load might challenge the stability of the emulsion. You may need to carefully observe the stability of the finished product over time.

Mixing Instructions

Here is a suggested method for mixing the revised formula:

1. Prepare the Water Phase (Phase A): In a container, combine the Distilled water and MatteSilica. Stir or blend well to ensure the MatteSilica powder is fully dispersed in the water. Set aside Phenoxyethanol for later.
2. Prepare the Oil/Silicone Phase (Phase B): In a separate container, combine SPF Protect Ultra, Cyclopentasiloxane, and Light Cream Maker.
3. Heat Phases: Gently heat Phase B to 70-80°C while stirring until the SPF Protect Ultra is completely melted and the phase is uniform. Heat Phase A to a similar temperature (around 70-80°C).
4. Emulsify: Slowly add Phase A (water phase) to Phase B (oil/silicone phase) while continuously stirring or blending vigorously. Maintain high-speed mixing for at least 15 minutes to form a stable oil-in-water emulsion.
5. Cooling: Allow the mixture to cool while stirring occasionally.
6. Add Preservative: Once the temperature drops below 60°C, add Phenoxyethanol and mix until fully incorporated.
7. Final Mixing: Continue stirring until the cream cools to room temperature and achieves the desired smooth, creamy consistency.

Regarding the "LIKE" Button

The "Click LIKE" feature you mentioned is likely a function of the specific website forum where you found the original post. It is a way for users to show appreciation for helpful replies within that forum system. As an AI assistant, I don't have the ability to interact with website-specific features like "LIKE" buttons. You would need to look for that button within the forum interface itself, usually near the post you found helpful.