Using Aristoflex AVC to Emulsify Oil Active Ingredients

Aristoflex AVC is a polymeric emulsifier, which means it functions as both a thickener and an emulsifier in one.

Regarding your question:

• No additional emulsifier is required: You can add oil or oil-based active ingredients directly into the formula. Aristoflex AVC can stabilize (emulsify) an oil phase of approximately 15-20% without the need for a traditional emulsifier.
• Mixing Method: You can mix Aristoflex AVC into the water phase to create a gel first, then gradually add the oil phase (including oil active ingredients) while stirring or using a high-speed mixer (homogenizer) to ensure the oil is thoroughly dispersed and stabilized. Alternatively, you can disperse the powder in the oil phase before adding water.

Important Considerations:

1. Electrolyte Sensitivity: Aristoflex AVC is very sensitive to electrolytes (salts). If your oil active ingredients or other components contain salts (e.g., Sodium PCA, certain plant extracts, or Vitamin C derivatives like Sodium Ascorbyl Phosphate), the viscosity of the gel will drop significantly (it will become liquid).
2. pH Range: It works best in a pH range of 4.0 - 8.0.
3. Clarity: If you add a significant amount of oil, the gel will turn from clear to an opaque white cream or lotion texture.

In summary, for oil active ingredients within the 15-20% limit, Aristoflex AVC can handle the emulsification on its own.