Lets take a closer look to ingredients in No. 5 Serum, All of them are active ingredients to help brighten dull skin, fade dark spots, and reduce hyperpigmentation to reveal a brighter and glowing Glutathione Sepiwhite Kojic Acid Vitamin C Lotion PHA Alpha Arbutin White Turmeric 4 oz Motto Plus Professional Glutathione 1% Alpha Arbutin and 3% Niacinamide High End Purifying Aging K Trendyol Derma Alpha Arbutin Glutathione Whitening Cream, 1.52 fl oz (45 ml)