
TRISODIUM PHOSPHATE
Description
Trisodium phosphate (TSP) is an inorganic compound with the chemical formula Na3PO4. It is a white, crystalline powder that readily dissolves in water, forming an alkaline solution. In skincare formulations, TSP serves primarily as a pH adjuster and buffering agent, helping to maintain the stability and effectiveness of product formulations.
TSP's alkaline properties make it effective in adjusting the pH of skincare products, particularly those that require a higher pH for optimal performance. This can be crucial for certain active ingredients or for creating formulations that are compatible with the skin's natural pH. Additionally, TSP acts as a chelating agent, binding to metal ions that could otherwise destabilize product formulations or reduce their efficacy.
While TSP has industrial uses as a cleaning agent, its application in skincare is carefully controlled and formulated at much lower concentrations. In cosmetic products, it is typically used in small amounts to ensure product safety and skin compatibility. However, due to its strong alkaline nature, formulators must exercise caution to prevent skin irritation, especially in products designed for sensitive skin. TSP's use in skincare is regulated by cosmetic safety authorities to ensure appropriate concentration levels and application.