
TEA
Description
Triethanolamine (TEA) is a versatile organic compound widely used in cosmetic and skincare formulations. This colorless, viscous liquid serves multiple functions, primarily as a pH adjuster and emulsifying agent. TEA's alkaline nature allows it to neutralize acidic ingredients, helping to stabilize product formulations and maintain optimal pH levels for skin compatibility.
In skincare products, TEA acts as a surfactant, facilitating the mixing of oil and water-based components to create stable emulsions. This property makes it valuable in the formulation of creams, lotions, and cleansers. TEA also functions as a foam booster, enhancing the lathering properties of cleansing products.
While effective, TEA usage is subject to concentration limitations due to potential skin irritation at higher levels. Regulatory bodies typically recommend concentrations below 5% in leave-on products and up to 10% in rinse-off formulations. It's important to note that TEA can react with nitrites, potentially forming nitrosamines, which are carcinogenic compounds. Therefore, formulators must take precautions to prevent this interaction.
Despite its benefits, some markets are moving towards TEA-free formulations due to concerns about its long-term safety and environmental impact. Alternative pH adjusters and emulsifiers are increasingly being explored in modern skincare development.