The TIRTIR Niacinamide 20% Serum offers an advanced, medical-grade solution for skincare enthusiasts and those battling persistent hyperpigmentation, uneven skin tone, or texture irregularities. This high-performance serum stands as a superior choice because it pairs a maximum-strength 20% concentration of Niacinamide with a powerhouse brightening duo of Alpha-Arbutin and Glutathione, creating a multi-layered defence against dark spots and sun damage. Navigating everyday environmental stressors often leaves the skin barrier compromised, but this sophisticated blend incorporates Zinc PCA and a complex of multiple Hyaluronic Acids to flood the skin with hydration while keeping the surface completely calm. Infused with a micro-dose of Retinol, this rapidly absorbing, weightless fluid simultaneously accelerates cellular turnover to smooth fine lines, leaving behind a resilient, glass-like luminosity without a hint of sticky residue. Why You Will Love It: Maximum Brightening Power: Combines 20% niacinamide and alpha-arbutin to significantly reduce the look of dark spots and uneven pigmentation. Pore Refining Action: Utilises zinc PCA to help regulate sebum and minimise the appearance of stretched or visible pores. Deep Moisture Infusion: Features multiple hyaluronic acids to lock in water and improve the overall elasticity of the skin. Youthful Texture Support: Employs retinol and glutathione to smooth out skin grain and provide a healthy, vibrant glow. How to Use: Apply two to three drops onto a clean, dry face after toning, avoiding the immediate eye area. Pat the serum gently into the skin until fully absorbed before following with a moisturiser.