Each mask contains 30ml of Pitera - abundant whitening essence, which penetrates deep into skin to even out skin tone. It also works with the breakthrough technology - Triple Power Enhancer which helps boost skin's protective power in three ways to give you crystal clear skin. Triple power enhancer boosts skin's protective power. Power 1: Protection against oxidation (uv and Super oxide). Flava-G hesperetin complex helps activate skin's anti-oxidant enzyme which helps slow down the relay of melanin. Power 2: Enhanced micro-circulation power. Flava-G hesperetin complex helps prevent active oxygen (anti-oxidation) and awake skin's micro-circulation. Power 3: Regulate the source of pigmentation (excess melanin production). MT Blocker helps increase skin metabolism to hasten the dispersion and discharge of dark spots. Use Whitening Source Intensive Mask as a 5-minute pampering the moment a week to help boost skin's protective power or utilize it consecutively for 2-3 weeks as a daily treatment before a special event (such as a wedding ceremony or gala dinner), so you can glow with fair and crystal clear skin. How to use: Place mask on your face. To soothe your eyelids, fold eye flap upwards. Leave it on for 15-20 mins. Gently remove the mask and lightly massage any remaining serum into your skin. Do not rinse. Discard the mask after single use. Use at least twice a week.