This serum is designed for those with concerns about pigmentation and uneven skin tone. Containing 68% rice bran water and 2% alpha arbutin, it helps to improve skin tone to become brighter and healthier. Key ingredients Rice bran water 68% Rice has played a very important role as a staple food and skin care ingredient in Korean history. In the Joseon Dynasty, rice bran water was used like the toner of today, and was called Beauty Water, used for beautiful skin. Rice bran is rich in amino acids and minerals, helping to moisturize dry skin. Alpha-Arbutin 2% Alpha-Arbutin works by inhibiting the tyrosinase activity that limits the melanin production in your skin. Additionally, it is also known to have a 10 times greater effect than regular Beta-Arbutin.​