Alternative Preservatives for Bakuchiol Cream

Alternative Preservatives for Bakuchiol Cream Formulation

For your Bakuchiol cream formulation containing both water and oil phases, and you are looking for alternative preservatives to replace Global Guard™ 221 (which primarily contains Dehydroacetic Acid and Benzyl Alcohol), there are several broad-spectrum preservatives suitable for emulsion type formulations (creams).

Here are some potential alternative preservatives:

• Chlorphenesin / Phenoxyethanol (Microcare PHC eq.): A blend of Phenoxyethanol and Chlorphenesin, effective in the pH range of 4.0-7.0. Use rate is 0.6-1.0%. Add in the final step when the temperature is below 60°C. It is a popular and effective broad-spectrum preservative.
• Phenoxyethanol P5: Pure Phenoxyethanol, effective over a wide pH range of 2-9. Use rate is 0.5-1.0% (not more than 0.5% for eye products). Can be added at any stage when the temperature is below 80°C. It is a widely used broad-spectrum preservative.
• Mild Preserved™ COS (pH 2-8, Broad Spectrum, No-Odor): A blend of Phenoxyethanol, Chlorphenesin, and Caprylyl Glycol, effective in the pH range of 2-8. Use rate is 0.75-1.5%. Add at any stage when the temperature is below 45°C. It is an odorless broad-spectrum preservative.

Important Note:

• Each preservative has a specific optimal pH range and temperature for incorporation. Always check the details of the specific preservative you choose.
• Most importantly, you must always perform a Challenge Test on your specific Bakuchiol cream formula to confirm that the chosen preservative is effective in controlling microbial growth in that particular formulation before proceeding to production for sale.