NEW SYMBIOSIS London HA + RNA Depuffing Circle Relief Eye Serum • 0.50 Oz Symbiosis London HA + R.N.A. Eye Serum 0.50 oz / 15 mL Anti-Puffing & Dark Circles. Formulated with Hyaluronic Acid and R.N.A., this serum is designed to hydrate, reduce puffiness, and help minimize dark circles around the eyes.