COSRX The Vitamin C 23 Serum, purchased with my own money.

I think they make really good products here.

It is a cosmetic product called COSRX The Vitamin C 23 Serum, and I bought it because I heard it is good for improving wrinkles and whitening.

This product suits me well, so I am already on my second bottle. I can feel my skin becoming firm right away after applying the serum.

When I first applied it, my skin stung a little, probably because it was a Vitamin C product, but as I kept using it, I got used to it and it was fine.