The Hydrabalance Brigthening Moisturizer by Urban Skin Rx is a lightweight moisturizer that comes highly recommended by Claire. She suggests using it at night as part of a retinol sandwich routine. This involves applying a lightweight moisturizer like the Hydrabalance Brigthening Moisturizer, followed by a retinol treatment, and then applying the moisturizer again to prevent skin irritation. Claire describes this moisturizer as high quality and encourages viewers to give it a try. Overall, the Hydrabalance Brigthening Moisturizer by Urban Skin Rx seems to be a reliable option for those in search of a lightweight moisturizer that works well with retinol treatments.