Product Description Replenish skins’ moisture barrier with the Neutrogena Hydro Boost Water Gel Moisturiser, clinically proven to instantly deliver 6x more hydration (vs untreated control) and boost moisture for up to 72 hours. When your skin’s moisture barrier is weakened, the water content of your skin decreases, leading to dehydrated skin and a more tired-looking appearance. This NMF cream (Natural Moisturising Factor) contains a group of moisturising ingredients that are found in your skin and help maintain skin hydration.