PDRN 100 HYALUR ACID BOOSTER TNR 8.45OZ. Benefits: Formulated with PDRN, Hyaluronic Acid and this refreshing daily toner delivers a non-sticky hydration boost that helps plump and revitalize dull, tired skin. Key Ingredients: PDRN (Sodium DNA) : Salmon DNA-derived ingredient that helps improve skin appearance & glow. HYALURONIC ACID : Provides deep hydration, keeping your skin soft and smooth. HYDROLYZED COLLAGEN : Helps to maintain the skin's moisture barrier. Research Results: 7.63% improvement of immediate skin texture after one-time use. Improvement of moisture plumping effect - amount of skin moisture 95.73% - depressed volume of the skin 19.04%. 4.71% improvement of deep skin hydration. 149.71% improvement of hydration across 20 layers of the skin stratum corneum. Improvement of immediate boosting effect on skin moisture density when using PDRN toner together compared to using PDRN serum alone - PDRN toner + PDRN serum 72.70% - PDRN serum alone 55.13%. Improvement of makeup adherence. Improvement of absorption compared to the control group - amount of skin absorption value: 166% - depth of skin absorption value: 145% - rate of skin absorption value: 145%. Skin irritation test completed. Skin irritation test for sensitive skin completed.