Apply The Ordinary Natural Moisturising Factors + HA in the moisturising stage, directly after cleansing with Squalane Cleanser and using serums such as Hyaluronic Acid 2% + B5. Apply both morning and night after serums to immediately hydrate the skin and for lasting results with continued use. If irritation occurs, stop use immediately. Use only as directed on unbroken skin. It’s advisable to patch test before use.