pH Stability

pH stability refers to a substance's ability to maintain its acidity or alkalinity level without changing significantly over time or under different conditions. Think of pH as a scale measuring how acidic or basic a solution is. When something has good pH stability, it means its pH remains consistent, ensuring that the chemical properties and effectiveness of products—like skincare, medicines, or food—stay reliable. Maintaining pH stability is important to prevent degradation, ensure safety, and preserve desired characteristics during storage and use.