TX Cream. Benefits: Targeted Hyperpigmentation Brightening Dr. Melaxin TX Cream works with tranexamic acid and niacinamide to help visibly diminish the appearance of stubborn dark spots and uneven tone, encouraging a smoother, more luminous complexion.. Features: Tranexamic Acid & Niacinamide Complex Dr. Melaxin TX Cream features a potent combination of tranexamic acid to help inhibit melanin production and niacinamide to support brightness and texture for more even-looking skin.. Key Ingredients: Tranexamic Acid + Niacinamide + Glutathione Dr. Melaxin TX Cream blends pigment-targeting tranexamic acid with niacinamide and antioxidant glutathione to help reduce the look of dark spots, improve clarity, and support balanced, radiant skin..