[RENEWED] COSRX The Vitamin C 13 / Advanced C 23 Serum, 20ml

[RENEWED] COSRX The Vitamin C 13 / Advanced C 23 Serum, 20ml [🛍️ Product Options] 1️⃣ COSRX The Vitamin C 13 Serum (20ml) 2️⃣ COSRX Advanced The Vitamin C 23 Serum (20ml) [📖 Product Description] ✔️ Brighten your skin with powerful Vitamin C serums, designed to target dullness, dark spots, and uneven tone. ✔️ The Vitamin C 13 Serum offers gentle yet effective antioxidant care, suitable for beginners and sensitive skin. ✔️ The Vitamin C 23 Serum provides intensive brightening and wrinkle care with a high concentration of pure Vitamin C. ✔️ Both formulas are lightweight, fast-absorbing, and clinically tested for visible results. [✨ Key Features & Benefits] ✨ Brightening → Helps fade dark spots and even out skin tone. 💧 Hydration Support → Formulated with soothing ingredients to minimize irritation. 🌿 Antioxidant Protection → Shields skin from environmental damage. 👩‍⚕️ Dermatologist-Tested → Gentle enough for daily use. 🔬 Two Strengths Available → Choose between 13% (mild) and 23% (intensive) depending on skin needs. [📋 Product Details & Specifications] Content: 20ml each Skin Type: All skin types (C 13 ideal for sensitive/beginners, C 23 for advanced users) Origin: Made in Korea 🇰🇷 [🧾 Key Ingredients & Functions] Vitamin C (Ascorbic Acid) → Brightens skin and reduces pigmentation. Niacinamide → Enhances radiance and improves texture. Hyaluronic Acid → Hydrates and prevents dryness. Allantoin & Panthenol → Soothing agents to reduce irritation. [🛠️ How to Use – Step by Step Guide] Vitamin C 13 Serum: 1️⃣ After cleansing and toning, apply 2–3 drops to the face. 2️⃣ Gently spread and pat until absorbed. 3️⃣ Follow with moisturizer and sunscreen in the morning. Advanced Vitamin C 23 Serum: 1️⃣ Use in the evening after toner/essence. 2️⃣ Apply a few drops evenly, avoiding the eye and lip areas. 3️⃣ Follow with a nourishing moisturizer, and always use sunscreen during the day. [📦 Packaging & Additional Information] Packaged in a dark bottle to protect Vitamin C potency. Includes dropper for hygienic application. Recommended to store in a cool, dry place away from direct sunlight.