High Oil Content Formulation and Emulsifier Selection
Question
I would like to ask for advice on a formula with high oil content. I initially proposed the following formula:
- Water: 45%
- Light oil: 45%
- Water in Oil EZ: 2.5%
- Milk Lotion Maker: 2.5%
- Water guard: 6%
The staff informed me that Water-in-Oil EZ cannot be used together with Milk Lotion Maker as they are different systems. They provided two alternative formulas for a product with 45% light oil:
Water-in-Oil System:
- Water: Remaining percentage to reach 100%
- Light oil: 45%
- Water in Oil EZ: 4%
- Oil-Fix™ (Water-in-Oil Stabilizer): 1%
Oil-in-Water System:
- Water: Remaining percentage to reach 100%
- Light oil: 45%
- Milk Lotion Maker: 5%
- Stabilizer: ClayThick Ready 10% OR Xanthan Gum 0.5%
Both recommended formulas require a preservative and stability testing due to the high oil content.
Could you please provide more details or confirmation regarding these formulations? Specifically, I am interested in achieving a stable formulation with high oil content (around 45%) and maintaining a liquid texture, while also considering the addition of Water guard for water resistance.
Answer
Based on the staff's response regarding your goal of creating a formula with high oil content (around 45-50%), Water-Capsule™ is not suitable as it can only emulsify up to 20-25% oil.
For a formula with 45% light oil, the staff recommended two possible approaches using different emulsifier systems:
Option 1: Water-in-Oil System
- Water: Remaining percentage to reach 100%
- Light oil: 45%
- Water in Oil EZ: 4%
- Oil-Fix™ (Water-in-Oil Stabilizer): 1%
Option 2: Oil-in-Water System
- Water: Remaining percentage to reach 100%
- Light oil: 45%
- Milk Lotion Maker: 5%
- Stabilizer:
- ClayThick Ready: 10% OR
- Xanthan Gum: 0.5%
Important Considerations:
- Both formulas require the addition of a preservative.
- Due to the high oil content, stability testing (e.g., using a centrifuge or storing at different temperatures over time) is crucial to ensure the formula does not separate.
- Regarding your question about increasing water resistance while maintaining a liquid texture, you mentioned "Water guard" in your proposed formula. The staff's recommended formulas focus on achieving stable emulsification at high oil levels.
Related Products Mentioned
Milk Lotion Maker™
