This BOOSTER fluid is rehydrating, plumping, regenerating. Botanical Hyaluronic Acid, combined with Aloe Vera and Borlind's own deep spring water, leaves skin thoroughly refreshed and hydrated. Red Algae provides increased lasting moisture. Can be used A.M and/or P.M. Apply after your Toner and before your Moisturizer. Shake before using. $40.00 (1.69 oz.)