Improve your skin's surface and reduce irritation with The Ordinary's Lactic Acid 10 Ha 30 ml. This alpha hydroxy acid solution offers targeted exfoliation and contains purified Tasmanian pepperberry extract for sensitive skin. With a pH of approximately 3.8 and a pKa of 3.8, this water-based serum is ideal for dry skin types. Experience the ideal balance between salt and acidity for maximum effectiveness and minimal irritation.