Brand from South Korea: CNP Laboratory. Benefits:A hypoallergenic soothing ampoule that infused with ionized BHA to help calm Troubled skin caused by dead skin cells.Improves excess sebum that causes skin troubles by 49.15% after using 4 weeks.Improves blackheads by 34.76% and whiteheads by 48.36% after using 2 weeks.Dermatologist tested for skin irritation. Suitable for use on acne-prone/sensitive skin.A slightly viscous, watery formula that absorbs smoothly into the skin.How to use:After cleansing and toning, apply a moderate amount of the ampoule to your entire face and gently tap the skin for absorption.You may wet a cotton pad with the ampoule and use it like an ampoule sheet mask.