Brand from South Korea: TROIAREUKE. A professional ampoule series specifically tackles certain skin problems. 1. Anti-Trouble (Green): Provides calming, soothing and moisturizing benefits. 2. Cell Repair (Red): An anti-aging ampoule infused with Grape Peel extract. 3. Mela-C (Yellow): Offers whitening benefit with Ellagic Acid and Pomegranate extract infused. 4. Akne-C (Blue): Containging Green Tea essence, it soothes and cools down the heat feeling. Use after toner, dispense 2-3 drops onto your palm and apply onto the face. Continue with essence or emulsion that follows.