The Ordinary Alpha Arbutin 2% + HA is a water-based serum formulated with a high concentration of purified alpha arbutin and hyaluronic acid. This advanced formula targets uneven skin tone, dark spots, and hyperpigmentation while providing hydration for a brighter, more even complexion. Key features: • Contains 2% pure alpha arbutin for targeting dark spots • Enhanced with hyaluronic acid for improved delivery • Water-based lightweight serum formula • Helps reduce appearance of hyperpigmentation • pH-optimized formula for maximum stability The product is formulated at an optimal pH level to prevent degradation of the alpha arbutin ingredient, which is sensitive to water. Some natural color changes may occur when exposed to sunlight or increased temperatures, but this does not affect the efficacy or safety of the product. Can be used both morning and evening as part of a skincare routine. For best results, use consistently and protect skin with sunscreen during daytime use.