COSRX The Vitamin C23 Serum

This is a review of the COSRX The Vitamin C23 Serum.

I really like vitamin serums, but they have always caused some irritation.

This serum was the mildest vitamin serum I have ever used.

I recommend it because I've never felt any stinging. Haha.

Since it's a Vitamin C product, I only use it before bed, and it doesn't seem to evaporate easily, as my skin doesn't feel dry in the morning!