The Vitamin C 23 Serum - 20g

Cosrx - The Vitamin C 23 Serum - 20g is a concentrated K-beauty face serum with a confirmed 20g size. The title and existing facts identify vitamin C 23 as the active focus, while the listing tag confirms Vitamin C, so the copy describes glow and tone-appearance support without promising promised transformation.

Why It Stands Out

This serum is more targeted than a basic hydration step because the product name centers on vitamin C 23. That makes it relevant for users already comparing active serums and looking for a Cosrx option with clear strength positioning.

Best For

Best for experienced serum users who want a vitamin C-focused product for a brightness-oriented routine.

How to Use

Apply a small amount after cleansing and before moisturizer. Use sunscreen daily, and introduce gradually if you are new to strong active serums.

Benefits

• Vitamin C 23 focus is confirmed by title and existing facts.
• Serum format supports targeted skincare layering.
• 20g size is confirmed in the listing.
• Useful for routines focused on glow and uneven-tone appearance.

Good to Know

Store according to packaging directions and keep closed between uses. Patch test before first use, especially if your skin is sensitive to active products.

Key Specs

• Brand: Cosrx
• Product type: Vitamin C 23 serum
• Size: 20g
• Category: Face Serum, K-Beauty
• Confirmed tag: Vitamin C