Cream Formulation for Dry Skin

Based on the discussion and the suggestions from C7 and Staff, the reason your previous attempts to create the cream resulted in separation was likely due to using SiliSolve Plus with a silicone percentage that was too low for that specific emulsifier. SiliSolve Plus is best suited for formulas with very high silicone content (40-50% or more).

For a formula with a lower silicone percentage and a significant water phase, a standard cream maker is more appropriate.

Here's a summary of the recommended adjustments based on C7's final suggestion to achieve a stable, light cream texture:

1. Emulsifier: Change from SiliSolve Plus to a standard cream maker like Pro Polymer or Light Cream Maker (suggested usage around 1.5%).
2. Dimethicone: Reduce the percentage of Dimethicone (Light, Low-Odor) to 10%.
3. Water: Increase the water percentage to make up the remaining amount needed to reach 100%.

The percentages of other ingredients you listed (Ceramide Complex, MOIST72, Shea Butter, natural oils, Aloe Vera, Glycerin, Phenoxyethanol) can likely remain the same, provided the total formula adds up to 100%.

Addressing your original questions based on this revised approach:

1. Can this formula be mixed into a cream?
   Yes, with the recommended change in emulsifier and adjustment of silicone/water ratios, this formula should be able to form a stable cream emulsion.

2. Does this formula need pH adjustment?
   Your original goal included mild exfoliation with Salicylic Acid (BHA). BHA requires an acidic pH (around 3.5-4) to be effective. If you include Salicylic Acid (and ensure it is properly dissolved, e.g., with sufficient Butylene Glycol and Polysorbate 20 as initially suggested by C7), then yes, the pH would need to be adjusted down. However, if you exclude Salicylic Acid, pH adjustment specifically for BHA efficacy is not needed. The final pH should be suitable for skin (typically 5-6).

3. Must the ratio of any other ingredients be adjusted?
   The primary adjustments needed are the emulsifier type/percentage and the Dimethicone/water ratio as outlined above. The ratios of the other active ingredients you listed do not appear to be the cause of the emulsification problem and can likely remain as you intended.

Using 10% Dimethicone and a suitable cream maker should help achieve the desired light texture for your cream.