Anua Niacinamide 10% + TXA 4% Dark Spot Correcting Serum

The Anua Niacinamide 10% + TXA 4% Dark Spot Correcting Serum stacks three clinically recognized brightening actives into a single lightweight formula: 10% niacinamide for sebum regulation and pore refinement, 4% tranexamic acid for melanin transfer inhibition, and 2% alpha-arbutin for direct tyrosinase suppression. This triple-active combination targets post-acne hyperpigmentation, uneven tone, and excess oil production simultaneously, making it one of the most efficient single-serum solutions for combination-to-oily, breakout-prone skin in the sub-$25 K-beauty market. Supporting the brightening actives are sodium hyaluronate and polyglutamic acid for hydration without heaviness, plus a ceramide inclusion that helps maintain barrier integrity under the high-active load. The texture is a fully watery, non-sticky serum that absorbs immediately without leaving film or shine, which makes it compatible with matte-finish SPF and foundation. Fragrance-free formulation reduces sensitization risk at the high niacinamide concentration. At $22 for 30 ml, the serum delivers competitive cost-per-active-dose compared with European TXA serums retailing at twice the price. It became a viral bestseller across TikTok and Korean beauty communities in 2023 and was expanded to global retail distribution through Ulta in 2024. The ideal user is an oily-to-combination skin type dealing with dark marks from past breakouts who wants a single-step brightening serum that doubles as a sebum controller.