The Ordinary Lactic Acid 10% + HA 30ml

Harvey Nichols £7.90 Go to Harvey Nichols First seen in Feb 2023

Description

Lactic Acid is an alpha hydroxyl acid that exfoliates the skin. The Ordinary's 10% formulation offers mild exfoliation and is supported with a purified Tasmanian pepperberry known to reduce signs of inflammation and sensitivity that is often associated with exfoliation. A milder 5% formula is also available. Lactic Acid should not be used on sensitive, peeling or compromised skin. This p H of this formula is approximately 3.8. Lactic Acid has a p Ka of 3.8 and p Ka is the most important aspect to consider in formulating with acids. p Ka implies acid availability. When p Ka is close to p H, there is an ideal balance between salt and acidity, maximizing effectiveness of the acid and reducing irritation. Higher p H numbers in such a case would increase salt which counter-intuitively would make the formula even more irritating than if the formula was more acidic. Note: While Lactic Acid can result in quick visible benefits, we generally suggest indirect forms of skin exfoliation in favour of direct forms such as this formula due to potential inflammation and sensitivity associated with acids. Please refer to NIOD's Non-Acid Acid Precursor for such a reference.£26.33 per 100.00ml