From The ZenBubble, the Bi-Phase Toner Serum is a new weightless, multitasking formula that combines the benefits of a pro-grade toner with the results of an anti-aging repair serum. When shaken, the 2-in-1 formula blends into a skincare cocktail that instantly calms, clarifies, and strengthens the protective skin barrier for a balanced, rejuvenated glow.