The Whitening Duo Set combines our Serum Milk Soap and Milk Lotion for a complete brightening and moisturizing routine. Formulated with 12 active ingredients in the soap and 10 in the lotion, including Japanese Alpha Arbutin, Advanced Niacinamide, Kojic Acid, and Glutathione. Together, they help exfoliate, hydrate, and promote smoother, brighter, more even-toned, and radiant-looking skin for enhanced results.