Foundation Formula Review and Improvement

Based on your foundation formula and your goals to improve spreadability and prevent color separation, adding LipidSoft™ Lite and LipidSoft™ Disperse are good considerations.

Improving Spreadability and Preventing Color Separation

• LipidSoft™ Lite (Isononyl Isononanoate): This is a light emollient that can significantly improve the spreadability and feel of the foundation on the skin. It provides a smooth, non-greasy slip, similar to silicones, which helps the product glide on more easily. You can consider adding LipidSoft™ Lite at a concentration of 5-15% of the total formula. You would likely incorporate this into your oil phase.

• LipidSoft™ Disperse (Diisostearyl Malate): This ingredient is specifically designed to act as a pigment disperser and binder. In a foundation formula containing powders like Titanium Dioxide, Zinc Oxide, Color, Mica, and Talc, using a dispersant like LipidSoft™ Disperse is crucial for ensuring the pigments are evenly distributed and remain suspended, preventing them from settling and causing color separation over time. Adding LipidSoft™ Disperse at a concentration of 2-5% would be beneficial. This should be added to the oil phase and mixed thoroughly with the pigments before combining with the water phase.

When adding these ingredients, you will need to reduce the percentage of other ingredients in your formula to maintain a total of 100%. You might consider slightly reducing the water phase, Jojoba Oil, or fillers like Mica and Talc, depending on the desired final texture and feel.

SPF/PA Assessment and Testing

Your formula contains Zinc Oxide (4%), Ethylhexyl Methoxycinnamate (6.5%), and Titanium Dioxide [nano] (4%), which are UV filters. While these ingredients contribute to sun protection, it is not possible to accurately determine the exact SPF and PA values (like SPF 25 PA++) solely based on the percentages in the formula.

The final SPF and PA values depend on several factors, including the specific type and particle size of the UV filters, their dispersion within the formula, the overall formulation matrix, and the thickness of application on the skin.

To know the precise SPF and PA values of your foundation, you must send a sample of the finished product for laboratory testing. You can inquire directly with MySkinRecipes regarding their SPF/PA testing services.