Seeking to illuminate the complexion without having to exfoliate the skin, the Allies of Skin Tranexamic and Arbutin Advanced Brightening Serum is a lightweight formula powered by an exclusive mushroom complex. Ancient reishi and shiitake mushrooms work together to nourish skin with potent antioxidants. Topped off with a cocktail of skincare actives, the serum is infused with 3% tranexamic acid, 2% alpha arbutin and 5% niacinamide to help create the look of balanced and refined skin.