Reviva Labs - Intercell Night Gel with Hyaluronic Acid - 1.25 oz. (35 g) With today's hearted or air conditioned homes and workplaces, your skin can lose valuable moisture. Most moisturizers can give a brief feeling of added skin moisture, but no long-range answer. Reviva Labs Intercell Night Gel with Hyaluronic Acid, via its hyaluronic acid, works differently. Reviva Labs Intercell Night Gel with Hyaluronic Acid helps retain moisture from the liquids you drink.