Compatibility of Lactobacillus Ferment Lysate with an Ascorbic Acid Formula

Yes, you can generally mix Lactobacillus Ferment Lysate into a formula containing L-Ascorbic Acid, such as the one you provided, provided the pH is within the recommended range for the lysate.

Based on the information for Lactobacillus Ferment Lysate (such as the products Lactobacillus Ferment Lysate and MYFerment™ Exfo), it should be mixed into the water phase of the formula, avoiding temperatures above 40°C. The recommended effective pH range for this ingredient is 3.5-5.5.

Your proposed formula, which contains L-Ascorbic Acid, Propylene Glycol, Alcohol denat, Phloretin, Ferulic Acid, L-Arginine (to adjust pH to around 4.0), and Phenoxyethanol, is designed to have an acidic pH (approximately 4.0) for the stability and efficacy of L-Ascorbic Acid. A pH of around 4.0 falls within the optimal range (3.5-5.5) for Lactobacillus Ferment Lysate.

Therefore, adding Lactobacillus Ferment Lysate to your formula should be compatible in terms of pH and mixing temperature (as L-Ascorbic Acid formulas are typically made at temperatures below 30°C). Ensure you follow the mixing instructions for each ingredient, adding Lactobacillus Ferment Lysate to the water phase and keeping the temperature below 40°C during its incorporation.