Propolymer Silicone Emulsification and Formula Spreadability

Based on your experiment and the staff's response regarding the formula using Propolymer to emulsify silicone:

1. Propolymer's Emulsifying Capacity for Silicone:

   • Yes, Propolymer can emulsify more than 10% silicone. Staff testing has shown it can emulsify up to approximately 25% oil + silicone.
   • However, long-term stability (6-12 months in various temperatures) for concentrations above the manufacturer's recommended level has not been fully tested.
   • If you plan to use Propolymer to emulsify silicone at higher concentrations, it is recommended to perform stability testing (e.g., storing samples in different temperature conditions) before commercial production.

2. Improving Spreadability (Formula feels difficult to spread and dries quickly):

   • The staff suggests that the oil phase in your formula might be a bit low, causing it to feel dry and difficult to spread.
   • To improve spreadability, you can try adding Dimethicone (Light, Low-Odor) at a concentration of 5-10%.
   • Alternatively, you could reduce the amount of Cyclomethicone and replace it with Dimethicone (Light, Low-Odor).
   • The difference is that Cyclomethicone provides a soft, smooth feel but dries quickly, which can make the product hard to spread as it evaporates on the skin. Dimethicone (Light, Low-Odor) also provides a soft, smooth feel but does not dry as quickly, allowing more time for spreading on the skin.