O2 White Essence is a whitening essence with a highly concentrated formula that can alleviate pigmentation such as age spots and freckles. Effective ingredients for whitening such as tranexamic acid, arbutin, niacinamide & 1% sodium hyaluronate are effectively delivered to the fine crevices of the skin texture to provide a skin brightening effect. With a special whitening recipe, it suppresses the activity of overstimulated melanocytes through step-by-step action and blocks the formed melanin to improve pigmentation such as spots, freckles, and blemishes.