COSRX Niacinamide 15 SerumI have been using the serum for a month. The oiliness of the skin has noticeably decreased, the pores have become less pronounced, and the subcutaneous rashes have decreased. The serum has aRead more
COSRX Niacinamide 15 SerumI have been using the serum for a month. The oiliness of the skin has noticeably decreased, the pores have become less pronounced, and the subcutaneous rashes have decreased. The serum has aRead more