COSRX The Niacinamide 15 Serum

I used this maybe 3-4 times so it’s almost a full bottle. Unfortunately my skin didn’t like this product, so it must find a new home. Highly concentrated serum that combines the maximum concentration of niacinamide with optimal ratios of synergistic ingredients for total acne control. *Non-comedogenic tested -doesn't clog the pores.