The SK-II Facial Treatment Essence is a popular skincare product known for its use of Pitera, a yeast-derived ingredient that is claimed to have brightening and antioxidant properties. The essence is said to reduce the appearance of fine lines and wrinkles when used twice a day

. The formula is primarily composed of Pitera, with a few humectants, water, and preservatives

. Some users have reported positive results, such as improved skin tone and hydration, while others have found it to be expensive and not as unique as it was when first launched

. The product is recommended for those looking to improve skin tone and texture, and it is advised to start with a deluxe sample/travel size due to its high price