The Facial Treatment Essence is enriched with more than 90 percent Pitera, the main ingredient used to enhance the skin's renewal process with nourishing vitamins, amino acids, minerals, and acids that promote skin renewal. Used daily, this essence moisturizes, improves texture and clarity, and contributes to a more beautiful, balanced, and glowing complexion. The Facial Treatment Essence is enriched with more than 90 percent Pitera, the main ingredient used to enhance the skin's renewal process with nourishing vitamins, amino acids, minerals, and acids that promote skin renewal. Used daily, this essence moisturizes, improves texture and clarity, and contributes to a more beautiful, balanced, and glowing complexion. After SK-II scientists observed the soft and youthful hands of aged sake brewers, they spent over five years isolating the single yeast strain that held the secret to soft, clear skin. With that, they developed their signature ingredient "Pitera" - a clear liquid rich in vitamins, amino acids, minerals, and organic acids derived from a controlled natural fermentation process.