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Medicube Kojic Acid Turmeric Niacinamide Serum NIB A brightening serum with a lineup that actually earns the hype. What’s in it and what it does: this trio is legit. Kojic acid is a well-studied tyrosinase inhibitor — it interrupts excess pigment production, so it’s one of the better-supported ingredients for fading dark spots and post-acne marks. Niacinamide evens tone, strengthens the skin barrier, and helps with the look of pores and oil. Turmeric (curcumin) adds antioxidant and calming, anti-inflammatory support. Together they target uneven tone and dark spots while keeping skin calm. Consistency is the key — brightening actives work over weeks, not overnight. Pat in after cleansing, before moisturizer, and always follow with SPF (kojic acid makes skin more sun-sensitive). Look forward to: a more even, brighter, clearer-looking complexion with fading spots the longer you use it. Retails $26 Shipping weight: 2.9oz