Decleor Aromessence Iris Revitalizing Serum 0.5 oz. by Decleor. Save 23 Off!. $64.95. Redefines features. Slowly hydrates. Protects skin from harsh internal/external factors. Softens signs of aging. Fights free radicals. Decleor Aromessence Iris Revitalizing Serum is a pure treatment that redefines the features and softens signs of aging through its draining, anti-stress action. It softens and soothes while slowly hydrating. It protects the skin from harsh internal and external factors.