Revised Sunscreen Formulation Feedback

Thank you for providing your revised formula based on the previous recommendations. Let's address your questions:

• Increasing Sunscreen Percentage: Yes, you can increase the Zinc Oxide to 12% and Titanium Dioxide to 3%. These percentages are within the typical usage rates for these physical sunscreens in cosmetic formulations and will provide higher UV protection.

• Changing Emollient: Yes, you can change from LipidSoft™ Palm to LipidSoft™ Lite and increase the percentage to 8.5%. As discussed previously, changing the emollient will alter the texture and feel compared to the original Paula's Choice product, which used Ethylhexyl palmitate (LipidSoft™ Palm). LipidSoft™ Lite (Isononyl Nonanoate) is a much lighter emollient and is less likely to clog pores than LipidSoft™ Palm, especially at higher concentrations. However, it provides less occlusive moisture. You should test this change to see if you prefer the feel of LipidSoft™ Lite at 8.5%.

• Adjusting Water Percentage: Correct. If you increase the percentages of other ingredients (like sunscreens and emollient), you must decrease the percentage of Water accordingly to ensure the total formula adds up to 100%.

• Mixing Steps: Your proposed mixing steps are correct and suitable for using Light Cream Maker™. This emulsifier works effectively without needing heat, simplifying the process.

Additional Recommendations:

Your revised formula looks much more balanced and practical for a first attempt compared to your initial draft. The reduction in the total percentage of beneficial extracts is also a good adjustment for a sunscreen formula, keeping the texture lighter.

Remember that achieving the exact texture and feel of a commercial product can be challenging. Focus on creating a formula that feels good on your skin and provides the desired sun protection. Start by making a small test batch to evaluate the texture, feel, and stability before making a larger quantity.

Good luck with your formulation!