Kojic acid, Vitamin A, L-Glutathione, Alpha Arbutin, Azelaic acid, and Niacinamide are all ingredients featured in our ClearTone Advanced Technology and together they work to improve the appearance of uneven skin tone. Retinol exfoliates skin to enhance the look of uneven skin tone. And Vitamin C is a powerful antioxidant that helps shield the skin from external environmental stressors. Additionally, you should incorporate a moisturizer with SPF into your skincare routine to protect your skin from further hyperpigmentation as a result of increased sun exposure.