Adjusting C E Ferulic Formulation Concentration

To reduce the concentration of L-Ascorbic Acid (LLA) in your C E Ferulic type formulation from 15% to 10%, you need to adjust the proportions of your ingredients.

This involves decreasing the amount of the L-Ascorbic Acid component by 5 percentage points. To maintain the total formula at 100%, you should compensate for this reduction by increasing the amount of your solvent phase.

The most suitable ingredients to increase are Ethoxydiglycol and/or Water. You should increase the combined amount of these solvents by a total of 5% to make up for the decrease in LLA.

Ideally, the percentages of Vitamin E and Ferulic Acid should remain the same as in your original 15% formula to help maintain the stability and antioxidant properties of the formulation.

In simple terms:

• Decrease L-Ascorbic Acid by 5%.
• Increase Ethoxydiglycol and/or Water by 5%.
• Keep Vitamin E and Ferulic Acid percentages unchanged.

Please note that changing the original formulation's concentrations, particularly the L-Ascorbic Acid level and solvent ratio, may affect the stability and shelf-life of the product. L-Ascorbic Acid is sensitive to oxidation, and the original formula is designed for stability.

Relevant products mentioned include L-Ascorbic Acid, Vitamin E, Ferulic Acid, and Ethoxydiglycol.