Adjusting Sunscreen Texture: From Thick to Liquid and Spreadable

Subject: Re: Inquiry and improvement of sunscreen texture

Hello,

Regarding your questions about the sunscreen texture:

1. Why is the texture not liquid like the description of Milk Lotion Maker™ on the website?
   The staff explained that the thickness you observed is primarily due to the high concentration of Titanium Dioxide 15nm Liquid and Zinc Oxide 35nm Liquid in your formula. These ingredients already contain emulsifiers. Adding Milk Lotion Maker™ on top of these contributes to the overall thickness of the final product, overriding the expected texture from Milk Lotion Maker™ alone.

2. The texture is very thick and hard to spread. How to fix it to be liquid and easy to spread (without pore-clogging ingredients)?
   To make the texture more liquid and easier to spread, based on the staff's recommendations:

   • First step: Remove Milk Lotion Maker™ from your formula. Since the Titanium Dioxide and Zinc Oxide liquids already contain emulsifiers, the formula should still emulsify without it.
   • If still too thick: The staff suggests adding certain emollients that can help make the formula more fluid and spreadable. Examples include MatteSilica (powder) or Dimethicone 1Secs (liquid).
   • Another factor: The staff also mentioned that SelectSorb™ (PMMA) can contribute to the thickness of the formula.
   • Last resort: If the formula is still too thick after trying the above steps, you may need to reduce the percentage of Titanium Dioxide 15nm Liquid and Zinc Oxide 35nm Liquid. You could potentially replace them with other sunscreen agents if needed.

These adjustments should help you achieve a thinner, more spreadable texture for your sunscreen.