Schwarzkopf BC Oil Innosense Oil Mask (150g / 500g) Special hair treatment to be used 1~2 times a week. With nano emulsion technology, it contains 3 times more oil ingredients than oil treatments in the same series. The oil is emulsified with particles 1/1000 finer than normal, allowing the dense oil to deeply penetrate the hair core while preventing excessive and uneven adhesion to the hair surface for the ideal shiny hair with good moisture and manageability [How to Use] After shampooing, thoroughly rinse hair, apply an appropriate amount to hair, leave on for about 5 minutes, and rinse well. Use once a week as a special care mask.