[SU:M 37] Micro-Active Brightening Ampoule 15ml[SU: M 37] Micro Active Brightening Ampoule 15ml Formulated with 10% natural and safe antioxidants that deliver stable and effective antioxidant, brightening, and firming effects. Lightweight watery texture easily absorbed and creates a radiant and resilient complexion. How to Use After toner, take an appropriate amount with a dropper and gently apply along the skin texture. Suitable for day and night use.