Triethanolamine for pH Adjustment

Triethanolamine 99% is often used in cosmetic formulations primarily to adjust the pH level. This is particularly relevant in formulations that contain acidic ingredients which need to be neutralized to achieve the desired pH range for stability, efficacy, or skin compatibility.

Examples of formulations where Triethanolamine is commonly used for pH adjustment include:

• Emulsions (Creams and Lotions): It is used to neutralize acidic emulsifiers or thickeners, such as Carbomer, helping to form a stable emulsion structure.
• Gels: When using gelling agents like Carbomer, Triethanolamine is added to neutralize the polymer, causing it to swell and form a gel, while also setting the final pH of the product.
• Cleansers and Shampoos: In surfactant-based products, Triethanolamine can be used to adjust the pH to a range that is optimal for the surfactants' performance and mildness on the skin or scalp.
• Serums and Toners: It can be used to adjust the pH of formulations containing acidic active ingredients or to bring the overall product pH into the desired range.

In these cases, even though Triethanolamine might offer minor secondary benefits (like slight emulsifying properties), its main function at typical usage rates (0.1-2.5%) is to increase the alkalinity and adjust the pH.