COSRX Vitamin C23 Serum

Elevate your skincare routine with the COSRX Vitamin C23 Serum — a high-performance brightening serum formulated to transform dull, uneven skin into a radiant, luminous complexion. Powered by a potent 23 % pure Vitamin C concentration, this lightweight booster targets dark spots, pigmentation, early signs of aging, and lackluster tone for visibly smoother, brighter skin.

🌞 Why It Works

This advanced serum harnesses a high strength 23 % pure Vitamin C (ascorbic acid) — one of the most effective antioxidants for brightening and anti-aging care. Enhanced with Super Vitamin E (tocotrienol) and glutathione, it helps amplify the brightening effect while protecting skin from environmental stressors. Additional soothing and hydrating ingredients like hyaluronic acid and allantoin help maintain moisture, calm irritation, and refine texture.

✨ Key Benefits

• Brightens and evens skin tone: Potent Vitamin C targets dullness and uneven pigmentation for a radiant, glowing finish.

• Fades dark spots & acne marks: Helps reduce the appearance of post-blemish pigmentation and stubborn spots with consistent use.

• Improves texture & firmness: Antioxidants support natural collagen production and help refine skin surface for a smoother look.

• Hydrates and soothes: Hyaluronic acid and allantoin lock in moisture and help calm the skin.

• Lightweight & fast-absorbing: A non-greasy formula that layers well under moisturisers and SPF.

🪄 Texture & Feel

This serum features a light, non-sticky texture that absorbs quickly into the skin, delivering powerful results without heaviness — perfect for morning and evening routines.

🧴 How to Use

After cleansing and toning, apply a few drops to clean skin. Gently pat to encourage absorption. Follow with moisturiser and sunscreen during the day — Vitamin C can increase sun sensitivity. Start slowly if you’re new to high-strength Vitamin C and gradually increase use as tolerated.

🌟 Who It’s For

Ideal for anyone concerned with dullness, uneven tone, dark spots, early aging, or texture irregularities — especially experienced Vitamin C users looking for a powerful brightening boost.