Overnight Hydration Therapy is an intensive overnight treatment mask designed to deeply hydrate while you sleep. It helps top up moisture levels and supports the skin's natural barrier, so the skin feels soothed and looks healthier by morning. As you sleep, your skin enters its powerful, natural repair mode. With cell renewal at its peak, this is the perfect time to deeply replenish your complexion for the day ahead. It's best for normal to dry skin, especially when skin feels tight, rough or lacking in glow. If your skin looks tired, feels dry or struggles to hold onto moisture, this is the kind of overnight support that helps skin feel smoother and more supple. The formula works overnight to soften the feel of dry patches, improve the look of texture and leave skin looking fresher and more even. You'll wake up to skin that feels well moisturised, less tight and better balanced. It also includes a relaxing aromatherapy blend to help you wind down as part of your evening routine. For an extra nourishing finish, you can layer it over your favourite ESPA serum or treatment oil.