Stability of SureCream™ at 1% Usage with 21% Oil/Silicone Phase

Based on the technical specifications for SureCream™ (Non-Ionic Cream Maker), here is an evaluation of your formula's stability:

1. Emulsifying Capability

Yes, SureCream™ is designed to be highly efficient. At a 1% usage rate, it is capable of emulsifying a 21% oil/silicone phase. The manufacturer indicates that 1% is sufficient for oil phases ranging from 20% to 40%.

2. Long-Term Stability Considerations

While 1% can technically bond the oil and water, "long-term stability" depends on several factors:

• Viscosity: At only 1% emulsifier and 21% oil, the resulting texture will likely be a thin lotion rather than a thick cream. Thin emulsions are more prone to "creaming" (oil droplets rising to the top) over time.
• Recommended Rate: The manufacturer generally recommends 2% for most standard formulations to ensure a more robust emulsion shield around the oil droplets.
• Stabilizers: To ensure long-term stability at a low 1% emulsifier rate, it is highly recommended to add a water-phase thickener (such as Xanthan Gum or a Carbomer) or oil-phase thickeners (such as Cetyl Alcohol or Stearic Acid) to increase the viscosity and prevent droplet migration.

3. Key Processing Requirements

To achieve a stable emulsion with SureCream™, you must follow these steps:

• Heat: Both the water phase and the oil phase (containing the SureCream™) must be heated to 80°C before mixing.
• Mixing: Combine the phases while hot and stir/homogenize thoroughly until the mixture cools down.

Summary: 1% is functional for 21% oil, but for the best long-term shelf life and a professional texture, increasing the usage to 2% or adding a stabilizing thickener is advised.