Nature Derma Hyaluronic Acid Toner Essence is a nourishing blend of hyaluronic acid and nutrient-rich seaweed extract. This toner provides instant and intense hydration. Hyaluronic acid is known to penetrate deep into the skin's layers to plump up the complexion while seaweed extract helps reduce redness in sensitive skin. Seaweed extract is also rich in polysaccharides that help lock moisture into the skin. Our unique Natural Biome-BoostTM Solution works to strengthen our skin barrier to protect it against environmental stressors like pathogens, toxins, pollution, and sun damage. This delicate, yet critical barrier is further strengthened each time you use the toner, thus giving you balanced, healthier skin.