Cosrx CosRx, The Niacinamide 15 Serum, 0.67 fl. oz. (20 ml)

I really like this serum. I’ve been using it for over a month now. It has a texture that’s slightly thicker than water, so it runs easily over the skin. It’s fragrance-free and absorbs quickly. It doesn’t contain any harmful or potentially unsafe ingredients. It does dry my skin a little, so I always apply a moisturiser afterwards. It noticeably tightens the pores on my face. Yes, I would recommend it—and I’ll definitely be buying it again!