Overview

COSRX The Vitamin C 23 Serum 20ml is a high-strength vitamin C serum for routines focused on dullness, uneven-looking tone, and antioxidant support. Its 23% vitamin C positioning makes it better suited to experienced active users than very reactive beginner routines.

Why it may suit your routine

• 23% vitamin C serum format.
• Includes vitamin E and glutathione positioning.
• 20ml size is compact for careful, regular face use.
• Useful when you want a dedicated brightening-style serum step.

Good to know

This is the 20ml Vitamin C 23 Serum option. Introduce slowly, store carefully according to the label, and reduce use if stinging, flushing, or dryness occurs.