Citric Acid in Glycerin Soap for pH Adjustment

# Citric Acid in Glycerin Soap

Citric acid is typically used in cosmetic formulations to adjust the pH level. When adding citric acid to glycerin soap, the amount needed is not a fixed percentage but depends on the desired final pH of the soap.

It is recommended to add citric acid gradually in small amounts, stirring well, and measuring the pH until the desired level is reached. Ensure the final pH of the soap is not lower than 3.0.

Since glycerin soap formulations can vary, testing with a small batch is always advisable to achieve the correct pH without affecting the soap's properties.