WHAT IT IS: iUNIK Propolis Vitamin Synergy Serum contains propolis and sea buckthorn extracts to soothe, nourish and revitalize at the same time. With the unique, optimal ratio of Propolis 70% and Vitamin C (Hippophae Rhamnoides Fruit Extract) 12%, it offers instant calming and brightening effects for sensitive skin Deeply moisturize and vitalize your skin with rich nutrients Double functional product for Whitening & Wrinkle Care by Niacinamide and Adenosine HOW TO USE: After facial cleansing or using toner, apply a proper amount to your face and gently dap for absorption.