Dr. Ankur Sarin on Instagram: "Step 1: Cleanse & Dry Wash your face with a gentle cleanser. Wait for your skin to become completely dry; applying Retinol on damp skin can increase absorption too quickly and lead to irritation. Step 2: The 4-Dot Method Take a pea-sized amount and place 4 dots on your face (forehead, both cheeks, and chin) to ensure even application. Carefully blend, avoiding the sensitive “danger zones” around your eyes and the corners of your mouth. Step 3: Seal with Moisturizer