Decleor Hydra Floral Moisturizing Mask 1.69 fl oz. by Decleor. $32.82. Deep penetration. Refining, firming and cleansing properties. Prevents outside pollution. All-natural composition. Uses intense, gradual hydration methods. Decleor Hyrda Floral is a concentrated, anti-pollution moisturizing mask. A plant-derived formula that employs the protection of water channels in skin for extreme hydration. Relaxes skin and protects against pollution with use twice a week.