What if your glow didn’t take months to show up?

With 23% pure Vitamin C, this serum delivers fast-track radiance—without the fluff.

COSRX The Vitamin C 23 Serum is a concentrated brightening treatment powered by 23% pure ascorbic acid, designed for those who want visible, clinical-grade results—not just promises.

Formulated with Super Vitamin E (Tocotrienol)—a next-gen antioxidant 50x more powerful than standard Vitamin E—it helps protect against free radical damage, support collagen synthesis, and visibly improve elasticity and fine lines.

To balance the strength, Hyaluronic Acid and Allantoin hydrate and soothe, helping reduce sensitivity and keep skin feeling calm, not reactive. This makes it ideal for those looking to fade acne scars, boost glow, and improve skin texture without compromising comfort.

Housed in a dark, stable bottle to protect potency, this no-nonsense formula focuses on high-impact actives—perfect for brightening purists and glow-getters who mean business.

Key Benefits

• Brightens Fast: 23% Ascorbic Acid fades hyperpigmentation and evens tone
• Boosts Elasticity: Tocotrienol (Super Vitamin E) enhances firmness and collagen health
• Smooths Texture: Supports soft, radiant skin while minimizing fine lines
• Hydrates & Soothes: Hyaluronic Acid and Allantoin prevent dryness or irritation
• Minimal Formula, Maximum Results: No filler, just clinical-grade antioxidants
• Smart Packaging: UV-protective bottle keeps vitamin potency stable

Perfect For

• Acne scars, sunspots, or dull skin needing a radiance reset
• Users ready to level up to a high-strength Vitamin C
• Brightening-focused skincare routines
• Mature or prematurely aging skin
• Those who want fewer ingredients with greater efficacy