The Vitamin C 13 Serum

Very effective and I didn’t have any allergic reaction. Made my acne scars fade

My Go To Vitamin C

Another COSRX product that I can't live without. It's the only Vit C I use and will continue to purchase. I did try the Vit C 23 but I definitely like how this one works on my aging skin better.

I lost count how many bottles I had purchased of this Vitamin C serum. My skin loves it and that is enough for me to come back to it.