Stabilizing Anhydrous Body Oil: Preventing Separation of Oil and Silicone

Based on your goal of creating an anhydrous body oil from a blend of oil and silicone that is currently separating, the pre-selected product, Lauryl PEG-9 Polydimethylsiloxyethyl Dimethicone (ID: 7592), is not the correct choice.

Analysis of Lauryl PEG-9 Polydimethylsiloxyethyl Dimethicone (ID: 7592)

This ingredient is a Water-in-Oil (W/O) and Water-in-Silicone (W/Si) emulsifier. Its function is to bind water to oil and silicone to create a cream or serum texture, typically in formulas containing 70-99% water. Since a body oil is an anhydrous (water-free) product, this emulsifier will not help stabilize the separation between the oil and silicone phases.

Recommended Solutions for Stabilizing Oil and Silicone

To prevent the separation of oil and silicone in an anhydrous body oil, you need a gelling agent or thickener that can increase the viscosity of the oil and silicone phases, creating a stable, single-phase gel texture.

We recommend the following products from the Oil-Fix™ line, which are designed for this purpose:

1. Oil-Fix™ S (Silicone Gelling, ID: 6929)

   • Function: Specifically designed to thicken/gel silicone oil (such as Dimethicone or Cyclomethicone) and mineral oil.
   • Recommendation: This is the primary choice if your formula contains a high proportion of silicone oil. It works by creating a stable network within the silicone phase, which helps suspend and stabilize the oil phase, preventing separation.
   • Usage Rate: 0.5-10%

2. Oil-Fix™ W (Oil/Silicone Gelling, ID: 1136)

   • Function: A universal gelling agent that can thicken/gel a wide range of oils, including vegetable oils (natural oils) and silicone oils. It also enhances waterproof performance.
   • Recommendation: This is a good choice if your formula contains a mix of various natural oils and silicones, as it is highly versatile.
   • Usage Rate: 0.5-10%

By incorporating a suitable gelling agent like Oil-Fix™ S or Oil-Fix™ W, you can stabilize your oil and silicone blend and achieve a smooth, non-separating body oil texture. You should disperse the chosen Oil-Fix™ powder into the oil/silicone blend until fully incorporated.