Laura Mercier Flawless Fusion Ultra-Longwear Concealer, 0.23 oz. A medium to full coverage, weightless concealer that perfects, hydrates and blurs, with 12 hours of crease-resistant wear. Seamless coverage. Weightless feel. Flawless 12-hour wear. Coverage That Won't Crease: The medium to full coverage concealer flexes with skin to seamlessly conceal under eye darkness and facial imperfections. All-day hydration creates a crease-resistant, natural finish. Weightless Feel with Blurring Effect: .