This product contains Niacinamide wich helps brightening the skin, I can really tell that this product have helped me brightening my skin. Lately I've been in love with COSRX products, Them really work!.

I've been using this essence every day and nigth and the black head power liquid of COSRX for almost two months and my skin have never been so smooth and healthy, the essence is so ligthweight and gentle so it absorbs quickly without stickness. My skin is oily type with acne, these days I have seen less oil and pimples so I'm really happy with these products.