TIRTIR Niacinamide 20% Serum 30ml | Brightening & Anti-Aging Korean Skincare with Retinol & Glutathione

✨ 100% Authentic – Sourced directly from Korea📅 Best By: 09/2027🔖 UPC: 8809928132969✅ Return accepted within 30 days📦 Ships Fast from the USA Looking to brighten dark spots, fight signs of aging, and even your skin tone? The TIRTIR Niacinamide 20% Serum is a high-performance Korean skincare treatment formulated with a potent 20% niacinamide blend—clinically proven to fade hyperpigmentation, refine texture, and reduce pore appearance. Boosted with encapsulated retinol, glutathione, and adenosine, this serum tackles dullness, fine lines, and discoloration for a brighter, youthful glow. The lightweight, non-sticky texture absorbs quickly and layers beautifully under moisturizer or SPF. This is your ultimate glow-boosting serum—perfect for skincare lovers targeting real results with a gentle yet powerful formula.