2 x COSRX Advanced The Vitamin C 23 Serum 20ml from Korea

2 x COSRX Advanced The Vitamin C 23 Serum 20ml from Korea

$42.47
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2 x COSRX Advanced The Vitamin C 23 Serum 20ml from Korea
  • 2 x COSRX Advanced The Vitamin C 23 Serum 20ml from Korea
  • 2 x COSRX Advanced The Vitamin C 23 Serum 20ml from Korea
  • 2 x COSRX Advanced The Vitamin C 23 Serum 20ml from Korea
  • 2 x COSRX Advanced The Vitamin C 23 Serum 20ml from Korea
  • 2 x COSRX Advanced The Vitamin C 23 Serum 20ml from Korea
2 x COSRX Advanced The Vitamin C 23 Serum 20ml from Korea

COSRX

2 x COSRX Advanced The Vitamin C 23 Serum 20ml from Korea

$42.47

Ships from Korea in 1–3 business days

Standard 7–15 · Express 5–10 business days. Postage by weight, shown at checkout. Rates
Shipping & duties

Ships from Korea via Korea Post. Processing 1–3 business days · Standard 7–15 / Express 5–10 business days. Shipping is by weight and shown at checkout. See rates.

US: customs fees may be charged on delivery (Aug 2025 US rule change). Canada: duties and taxes may be collected on delivery.
Freshness & authenticity

Bought in small batches from Korean authorised retail channels, so you receive the same current stock Seoul shoppers get. Sealed and unopened, with the manufacture or expiry date printed on the box.

Product details

Overview

COSRX Advanced The Vitamin C 23 Serum is a high-potency Vitamin C serum formulated with 23% pure Vitamin C to provide intensive brightening, antioxidant care, and early anti-aging support. Designed for experienced Vitamin C users seeking advanced skincare results, this dual-layer serum combines powerful antioxidant ingredients with hydrating and soothing components to help improve the appearance of uneven skin tone, dullness, and overall skin condition. The innovative dual-layer formula delivers a rich yet comfortable application while helping maintain Vitamin C stability and skin comfort.

Key Features

  • 23% Pure Vitamin C Formula: Contains 23% pure Vitamin C for intensive daily brightening and skin tone care.
  • Advanced Brightening & Tone Care: Helps improve the appearance of dull skin and uneven-looking skin tone for a more radiant complexion.
  • Intensive Early Anti-Aging Care: Combines pure Vitamin C with synergistic ingredients to support firmer, healthier-looking skin.
  • Powerful Antioxidant Synergy: Enriched with Super Vitamin E (Tocotrienol), Tocopherol, and Glutathione to enhance antioxidant skincare benefits.
  • Elasticity & Brightening Support: Features Adenosine and Niacinamide to help support skin elasticity and radiance.
  • Hydration & Soothing Care: Formulated with Hyaluronic Acid, Panthenol, and Allantoin to help maintain moisture and skin comfort.
  • Advanced Dual-Layer Technology: Innovative dual-layer serum texture helps provide hydration and nourishment while supporting comfortable application.
  • Low-Irritation High-Performance Formula: Optimized pH balance and stabilized Vitamin C technology designed to maximize effectiveness while minimizing discomfort.

    What's Included

    • 2 x COSRX Advanced The Vitamin C 23 Serum 20ml

    The item is shipped directly from Korea.

    Good to know

    Where does it ship from, and how long does it take?

    Packed in our Seoul shop and shipped from Korea by Korea Post. Orders are packed in 1–3 business days; standard delivery is 7–15 business days, express 5–10. Full rates.

    Will I pay duties or customs fees?

    US: customs fees may be charged on delivery following the August 2025 US rule change. Canada: duties and taxes may be collected on delivery. Shipping itself is by weight and shown at checkout.

    How fresh is the stock?

    We buy in small batches from Korean retail channels, so you receive the same current stock Seoul shoppers get. Korean packaging prints the manufacture or expiry date on the box.

    Is it authentic?

    Yes. Everything is sourced through Korean authorised retail channels, sealed and unopened. Never grey market, never counterfeit.

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