Refresh your skincare routine with Medicube Kojic Acid Turmeric Capsule Serum 30ml — a lightweight brightening serum designed to help improve the look of dark spots, uneven skin tone, and dullness while keeping skin comfortable and hydrated. Medicube’s official U.S. site currently lists this product as Kojic Acid Turmeric Capsule Serum, not “Niacinamide Serum,” and describes it as a capsule-based formula for dark spot and hyperpigmentation care.