Facial Cream Formulation Review

Regarding your facial cream formulation, here is a review of the ingredients and your questions:

Ingredient Compatibility

The ingredients you've selected are generally compatible with each other within the typical pH range for cosmetic formulations (around pH 3.5-7). Most of the active ingredients and the Light Cream Maker function well within this range.

One point to note is that Aloe Vera Extract is an electrolyte. Electrolytes can sometimes reduce the viscosity of creams made with certain emulsifiers like Light Cream Maker. Your current percentages (3% Aloe Vera Extract, 2% Light Cream Maker) seem reasonable, as the Light Cream Maker description suggests using 2-3% when electrolytes are present. If you find the cream is too thin, you might need to slightly increase the percentage of Light Cream Maker or use a specific mixing method where the electrolyte is added gradually after the cream base is formed.

Increasing Aloe Vera Extract Percentage

Yes, you can increase the percentage of Aloe Vera Extract. The recommended usage rate for Aloe Vera Extract is typically 1-10%. You are currently using 3%, so increasing it up to 10% is within the recommended range. However, as mentioned earlier, increasing the amount of Aloe Vera Extract may require a corresponding increase in the percentage of Light Cream Maker to maintain the desired cream consistency due to its electrolyte nature.

Need for Preservative

Yes, it is necessary to include a broad-spectrum preservative in this formulation. Your formula contains approximately 75% water, which is a prime environment for the growth of bacteria, mold, and yeast. While some of the raw materials might contain small amounts of preservatives, these are usually not sufficient to protect the entire finished product from microbial contamination over time. Adding a suitable preservative system is crucial to ensure the safety and shelf life of your cream.

In summary, your chosen ingredients are compatible, you can increase the Aloe Vera Extract percentage (adjusting Light Cream Maker if needed), and adding a preservative is essential for product safety and stability.