Cosrx The Vitamin C 23 serum

Cosrx The Vitamin C 23 Serum – 20ml is a concentrated vitamin C face serum from COSRX. Vitamin C is one of the best-known ingredients for helping skin look brighter and more even.

It's ideal for dull-looking skin and for anyone ready to try a more potent vitamin C step. The compact 20ml bottle helps you use it while it's fresh.

How to use:

• Apply a small amount to clean, dry skin.
• Spread evenly over the face, avoiding the eyes.
• Follow with moisturiser.
• Use sunscreen every morning.

Strong vitamin C can tingle, so start every other day and patch test first. Store away from heat and light, and close the cap tightly.