pH Adjustment for Shampoo with Sodium Lauroamphoacetate: Citric Acid vs. Lactic Acid

Regarding your question about adjusting the pH of shampoo using Sodium Lauroamphoacetate (Mild Wash) as the main surfactant:

• First, please note that Citric Acid is still available for purchase, as confirmed by the staff. You can click the link provided in the staff's response to find it.
• Citric Acid is a common ingredient used to lower the pH in cosmetic formulations, including shampoos.
• As an alternative to Citric Acid for pH adjustment in shampoo, the staff recommended Lactic Acid.
• Recent studies indicate that Lactic Acid can be beneficial for hair, helping to improve its strength and elasticity.

Therefore, you can use either Citric Acid or Lactic Acid to adjust the pH of your shampoo. Lactic Acid offers the potential added benefit of improving hair health.