The Cos De Baha RS Retinol 2.5 Serum paired with Valencia Gio Nature Plus Sun Block SPF 50+ is a complete day and night skin renewal combo. Retinol works overnight to resurface, firm, and fade dark spots while the SPF 50+ sunblock protects those results from UV damage every morning. A smart, results-driven pairing for anti-aging, acne, and pigmentation concerns common in Bangladesh. Buy online from koreanshopbd.com, COD available!