The UIQ Biome Barrier Toner is enriched with 24% CutiBiomeTM, a proprietary skin-derived microbiome ingredient developed by Genome & Company, designed to strengthen the skin's natural defenses and enhance the skin barrier. Its unique formula also combines gentle exfoliation with hydration, featuring lactic acid, citric acid, and urea for smooth skin, along with 2% niacinamide to help with skin tone and reduce pigmentation for a clearer, brighter complexion.