Cosrx Advanced The Vitamin C23 Serum – 20g

Buy Cosrx The Vitamin C23 Serum in Nigeria

Do you struggle with dark spots, dullness, or an uneven skin tone that will not fade? The Cosrx The Vitamin C23 Serum (20g) is a high-strength Korean serum built around 23% pure Vitamin C. As a result, it targets dullness, dark spots, and early signs of aging with a formula that skincare fans across the world already trust.

This Vitamin C23 Serum is a genuine authentic imported product, made in South Korea by Cosrx. The brand is known for effective, minimal-ingredient skincare. Buying the authentic version matters here more than usual, because Vitamin C serums are sensitive to oxidation. Therefore, a genuine, properly stored bottle keeps its potency, while a fake or poorly stored one simply stops working.

This serum suits people who already use active ingredients and want a stronger, faster-acting brightening step. However, it is not the gentlest starting point for total beginners. Even so, for anyone with visible dark spots or dull, uneven skin, it delivers real results. Whether you are shopping from Lagos, Ibadan, Abuja, Port Harcourt, or Kano, CSI Grocery delivers this Cosrx Vitamin C23 Serum quickly and reliably, right to your door.

Key Benefits of the Cosrx Vitamin C23 Serum

• High-strength brightening: 23% pure Vitamin C helps fade the look of dark spots, hyperpigmentation, and dullness.
• Super Vitamin E (Tocotrienol): Offers stronger antioxidant support than standard Vitamin E, so it helps protect skin from daily stress.
• Hyaluronic acid hydration: Keeps skin feeling moisturised, even with a potent active formula.
• Firming support: Helps improve the look of fine lines and rough texture over time.
• Lightweight, fast-absorbing texture: Sinks in quickly, so it never leaves a sticky or heavy finish.

How to Use the Cosrx Vitamin C23 Serum

After cleansing and toning, apply 2 to 3 drops across your entire face. Then, pat gently until fully absorbed, and follow with a moisturiser.

If you use it during the day, always finish with sunscreen of SPF 30 or higher, since Vitamin C works best alongside sun protection. Before your first full application, start with a patch test on your wrist or neck. If your skin feels sensitive, simply use it less often at first, then build up gradually.

Additionally, avoid combining this serum with AHA, BHA, or copper peptide products in the same routine. Store the bottle in a cool, dry place, away from direct sunlight. Each bottle holds 20g (0.70 fl. oz), which lasts several weeks with daily use.

Why Buy Your Vitamin C23 Serum from CSI Grocery

Shopping genuine imported skincare in Nigeria is simple with CSI Grocery. Here is what you get with every order:

• Genuine authentic imported products, sourced directly and never counterfeit
• 100% original products, guaranteed
• Same-day delivery in Lagos and Ibadan
• Nationwide shipping across Nigeria by GIG Logistics
• Free delivery on orders above ₦200,000
• Pickup available at our physical stores in Lagos and Ibadan
• Bulk purchase discounts, so buying more costs less
• Secure checkout and dependable customer support at every step

This serum is priced at ₦22,500, with savings on larger orders: ₦22,387.50 for 3–5 units, and ₦22,050 for 6 units or more.

Frequently Asked Questions About the Cosrx Vitamin C23 Serum

Is this Cosrx Vitamin C23 Serum original?
Yes. CSI Grocery sells only genuine, authentic imported products, so every bottle you receive is 100% original Cosrx.

Can I order this serum from anywhere in Nigeria?
Yes. We ship nationwide by GIG Logistics, including Abuja, Port Harcourt, and Kano.

Who should use this Vitamin C serum?
It suits people already familiar with active skincare ingredients who want a strong, targeted brightening treatment. That said, first-time active users should patch-test before applying it to the full face.

You May Also Like

Browse more from our Face Serums | Face Creams collection, or explore the wider Face and Skincare ranges. For a gentler brightening option, check out the 40 Carrots Strawberry + Vitamin C Brightening Facial Serum, or pair your routine with a daily Sunscreen for full sun protection.

Ready to fade dullness and dark spots for good? Add the Cosrx Vitamin C23 Serum to your cart today and enjoy fast, reliable delivery anywhere in Nigeria.