An infinite aura that overflows with radiance. The long-awaited renewal after 4 years. SK-II's most popular medicated whitening essence has finally evolved. Prevents age spots and freckles by suppressing melanin production. Focuses on 4 types of skin dullness (brown or gray dullness, due to excessive melanin production), red dullness (due to rough skin caused by dryness), yellow dullness (due to lack of moisture), wrinkles, and also focus on a photoinhibitor emitted from within the skin that blocks light. SK-II No.1 has evolved with Pitera and new ingredients (based on sales data of SK-II brightening products from Q1 2022 to Q3 2024). Medicinal whitening essence (suppresses melanin production to prevent blemishes and freckles). Based on SK-II's more than 30 years of brightening research, this medicated whitening essence has evolved with a focus on new research findings in the advanced research field of biophotonics. Contains SK-II's unique Pitera as well as the whitening active ingredient niacinamide (nicotinamide W-whitening active ingredient) and the newly selected infinite aura complex, a new compound ingredient that includes bisabolol pro. It penetrates into every corner of the stratum corneum, leaving your skin instantly moisturized and bright. And with every use, your skin will glow with an overwhelming, dazzling, infinite radiance. Pitera : a natural ingredient exclusive to SK-II, created by fermenting a special yeast strain through a unique process. (SK-II's unique galactomyces culture solution - skin conditioning and moisturizing ingredient). How to use: After preparing your skin with lotion, take an appropriate amount (1 dropper's worth) into the palm of your hand. Apply the essence to the areas of concern. Spread it over your entire face and gently press until it is completely absorbed.