UMISO Niacinamide 20 Serum is a high-concentration Korean brightening serum formulated with 20% Niacinamide, Tranexamic Acid (TXA), and Glutathione — a clinically validated triple-brightening system that targets dark spots, post-acne hyperpigmentation (PIH), post-inflammatory erythema (PIE), enlarged pores, and uneven skin tone in as little as two weeks. At the core is 20% Niacinamide (Vitamin B3) — one of the highest concentrations available in a serum format — working simultaneously to inhibit melanin transfer to the skin surface, regulate excess sebum, minimize pore appearance, strengthen the skin barrier, and improve overall skin tone clarity. For those already familiar with Niacinamide who want visible, intensive results, 20% delivers measurably stronger outcomes than standard 5–10% formulas. In a clinical trial by the ProbeM Skin Research Center, the serum achieved a 27.7% reduction in hyperpigmentation and a 20% reduction in post-acne redness after just two weeks. Tranexamic Acid (TXA) targets stubborn pigmentation at the source by blocking the enzymatic pathways that trigger melanin overproduction — making it especially effective for melasma, sun spots, and post-inflammatory hyperpigmentation that resist standard brightening treatments. Glutathione, a master antioxidant, complements TXA by neutralizing free radicals that drive oxidative pigmentation and brightens from within for a more luminous, even complexion. A Triple Centella Complex — Asiaticoside, Asiatic Acid, and Madecassic Acid, the three most bioactive compounds in Centella Asiatica — soothes redness, calms inflammation, and reinforces the skin barrier, making this high-potency formula well-tolerated even for sensitive and reactive skin types. Triple Hyaluronic Acid (Hyaluronic Acid, Hydrolyzed Hyaluronic Acid, and Sodium Hyaluronate) provides multi-depth hydration at a lightweight texture that absorbs fast with zero stickiness. Supporting ingredients including Allantoin, Portulaca Oleracea (Purslane), Peony Root (Paeonia Suffruticosa), Mugwort (Artemisia Princeps), and Rhodiola Rosea further calm, condition, and protect for a comprehensive skin-balancing effect. Fragrance-free, colorant-free, paraben-free, silicone-free, and sulfate-free — suitable for all skin types including oily, combination, acne-prone, and sensitive skin.