My Own Purchased Essence/Serum/Ampoule Edition: COSRX Serum

My Personal Purchase Essence, Serum, and Ampoule Review: I recommend the COSRX The Vitamin C 23 Serum.

This is a high-intensity Vitamin C serum containing 23% pure Vitamin C, which helps improve uneven skin tone and promotes clear and healthy skin care.

I have been using this product for a long time, stocking up on it whenever it is on sale at Olive Young.