BRIGHTEN UP 3% TXA TONER - Dark spot toner with azelaic acid + PHA PERFECT FOR - Dark Spots + Skin Tone: A brightening 3% TXA (tranexamic acid) toner clinically proven to reduce the look of dark spots in just 7 days! This daily dark spot solution is also formulated with azelaic acid + 5% PHA to even skin tone + gently resurface skin to boost radian..