Evaluation of Your Cold Process Cream Formulation

Based on the formulation you provided and the information available, here is an evaluation of its suitability, particularly for a cold process method:

Base Cream Ingredients

• Viscolam AT 100P (3%): This ingredient is suitable for cold process formulations as it functions as a water-oil binder (emulsifier) and thickener. Your proposed usage rate of 3% is within the recommended range.
• Microcare PHC (0.2%): This is a preservative blend (Chlorphenesin / Phenoxyethanol). While it is added in the final step below 60°C, which is compatible with cold process, the concentration you are using (0.2%) is lower than the recommended usage rate of 0.6-1.0%. Using a lower concentration may result in insufficient preservation, and it is highly recommended to perform a challenge test to ensure the formula is adequately protected against microbial growth.
• Other Base Ingredients: Ingredients like DI Water, EDTA 2Na, Glycerine, white oil, and IPM are common in cream formulations. Their compatibility in a cold process emulsion formed by Viscolam AT 100P should be evaluated for overall stability.
• Fragrance & Color: The specific types of Fragrance and Color used should be compatible with the cold process method and the overall composition of the cream.

Active Ingredients

Based on previous information, the active ingredients you plan to include are compatible with a cream base and can be incorporated as described:

• Sym-White (0.2%)
• Apple Stem Cell (1%)
• silver nano Pure (1%)
• lift now (1%)

Overall Suitability for Cold Process

The use of Viscolam AT 100P makes this formulation feasible for a cold process. The active ingredients are also reported to be compatible with a cream base.

However, the primary concern is the low concentration of Microcare PHC. Proper preservation is crucial for product safety and shelf life. You should either increase the concentration of Microcare PHC to the recommended range (0.6-1.0%) or perform a rigorous challenge test at your proposed concentration to confirm its effectiveness.

Additionally, the overall stability of the emulsion created by Viscolam AT 100P with your specific oil phase (white oil, IPM) and the combination of all ingredients should be tested to ensure the cream remains stable over time (no separation, changes in texture, etc.).