Optimal pH for Green Tea Extract Stability and Effectiveness

Based on information for green tea extracts, the recommended pH range for optimal effectiveness and stability is typically between 4.0 and 6.5.

Maintaining the formulation within this pH range helps preserve the beneficial compounds, such as EGCG, which are responsible for the antioxidant and other skin benefits of green tea extract. It is also important to store products containing green tea extract away from light and heat to maintain their quality.