Kiehl’s Ultra Pure Niacinamide Serum 5% – Oil-Minimizing Formula 30ml – Authentic
The Ultra Pure High-Potency Serum features a concentrated 5% Niacinamide formula, crafted with only 10 ingredients to visibly reduce excess oil, minimize imperfections, and refine skin texture. 🌿 Hero Ingredient: Niacinamide (Vitamin B3).