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Cosrx

Cosrx The Vitamin C 13 Serum 20ml

20ml

Cosrx The Vitamin C 13 Serum brightens dull skin, fades dark spots, and boosts radiance with a gentle yet effective vitamin C formula.

£ 27.00£ 35.00 Save 23%

Cosrx The Vitamin C 13 Serum brightens dull skin, fades dark spots, and boosts radiance with a gentle yet effective vitamin C formula.

100% Authentic · Free shipping over £ 75.00

  • Direct from authorized distributors
  • Sealed original packaging — batch code visible
  • Verify your batch number with Cosrx
  • 2× money-back guarantee if not authentic
How to use
- After cleansing and toning, apply 2–3 drops to dry face and neck. - Gently press and smooth until fully absorbed, avoiding the eye area. - Follow with moisturizer; in the morning, finish with broad-spectrum SPF. - Start 3–4 times a week, then use daily as tolerated. Store in a cool, dark place.
Key ingredients
- 13% Vitamin C (Ascorbic Acid): Targets discoloration and boosts radiance - Vitamin E (Tocopherol): Enhances stability of vitamin C and provides antioxidant support - Hyaluronic Acid: Draws in water to keep skin plump and comfortable - Allantoin: Helps calm visible redness and supports skin recovery - Panthenol (Pro-Vitamin B5): Reinforces the moisture barrier for a supple finish
Key benefits
- Visibly brightens lackluster skin for a more luminous complexion - Helps soften the look of dark spots and post-acne marks - Supports a smoother, refined texture with a lightweight, fast-absorbing feel - Antioxidant protection to defend against environmental stressors - Layers well under sunscreen and moisturizer without pilling
Transparent pricing

Why are we 23% cheaper than others?

We're not a typical retailer — we're a parallel importer.

  • We buy directly from authorized Cosrx distributors in bulk
  • We skip the middleman markup that retail stores add
  • Same authentic products, same batch codes, same manufacturer warranty — just without the retail premium
  • Every product comes with a batch code you can verify with Cosrx

We're transparent because we have nothing to hide.

  • 📦 Ships from our United Kingdom warehouse via FedEx/UPS
  • 🚚 2–3 day express delivery
  • 📍 Tracking number sent within 24 hours
  • 🇬🇧 No customs, no duties, no surprises
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