When you combine Niacinamide with Glutathione The results are This moisturizing cream is formulated with glutathione and niacinamide to deliver antioxidant and brightening properties to skin. It's added with centella asiatica APLB Glutathione Niacinamide Facial Cream 55ml, Hydrating, Brightening, Soothing Walmart.com Combining Glutathione and Niacinamide for skin brightening can be extremely beneficial for your skin. Niacinamide helps reduce pigmentation and dark spots, whereas glutathione helps reduce melanin production, thereby lightening the dark spots Can I Mix Niacinamide With Glutathione 25% Vitamin C + Glutathione Clinical Serum