Using Titanium Zinc NanoLiquid™ DEC in O/W Cream Formulations
คำถาม
Can Titanium Zinc NanoLiquid™ DEC (non-white, low viscosity) be used effectively in an Oil-in-Water (O/W) cream formulation?
I have attempted to incorporate it into a cream, but the resulting texture is not aesthetically pleasing and lacks smoothness.
- What are the specific challenges or limitations of using this mineral dispersion in an O/W system?
- How can I improve the stability and appearance of the final product?
- Are there specific stabilizers, thickeners, or processing techniques recommended to ensure a smooth, premium feel when using this ingredient?
คำตอบ
Titanium Zinc NanoLiquid™ DEC (non-white, low viscosity) can be used in O/W (Oil-in-Water) formulas, but it is more challenging to stabilize compared to W/O (Water-in-Oil) systems. This is because the product is an oil-based dispersion (in Diethylhexyl Carbonate).
The "unattractive texture" you experienced in your O/W cream is likely due to the high density of the mineral particles (Titanium Dioxide and Zinc Oxide), which can cause the emulsion to become unstable, grainy, or separate if the emulsification system is not strong enough.
Recommendations to improve the formula:
- Switch to a W/O (Water-in-Oil) System: This product is specifically optimized for W/O systems. In a W/O system, the oil is the continuous phase, which makes it much easier to suspend high loads of mineral sunscreens, resulting in a smoother, more stable, and more water-resistant texture.
- Strengthen the O/W Emulsion: If you must use an O/W system, you need a very robust emulsifier and stabilizers.
- Stabilizers: Adding a stabilizer like Magnesium Aluminum Silicate can help suspend the heavy mineral particles and prevent them from settling or causing the texture to look uneven.
- Thickeners: Use a thickener that is compatible with high mineral content. Some synthetic polymers may lose viscosity when high amounts of minerals are added.
- Mixing Process: Ensure that the Titanium Zinc NanoLiquid™ DEC is thoroughly mixed into the Oil Phase until completely homogeneous before performing the emulsification process.
- Usage Rate: If the texture is poor, try reducing the usage rate and supplementing with other sunscreens, or ensure your emulsifier-to-oil ratio is sufficient to handle the total oil phase (including the DEC liquid).
If you would like to achieve a "premium" feel with high SPF using this specific ingredient, we highly recommend formulating it as a Water-in-Oil (W/O) or Water-in-Silicone (W/Si) emulsion.
