COSRXThe Niacinamide 15 Serum

The serum reduced my enlarged pores, not particularly drastically, but I still see a change. I've been using it for about 3 months.

Good

At first I used it as a classic serum in the morning and evening, but it was too strong for my acne-prone skin. Later I tried using it only on spots on fresh acne that had formed on me and I wouldn't give it up for anything! Thanks to the zinc content, it heals acne from evening to morning - it dries it out, heals it so that you can easily cover it with concealer. After 2 days, there is not a trace of painful acne. A really great product for this purpose!

Fantastic product, definitely try it!! It's worth the money!!!

I've been using it for a while now and I think it'll be my permanent product. I have acne-prone skin (39 years old) and can't imagine skincare without this product. Thank you, and I recommend it, alternating it with retinol and azelaic acid. All available at Ksisters, with very good ingredients! I recommend it.

I've only been using it for two weeks, but after a few days I could feel the difference. It became part of my evening routine, and the next day my oiliness completely disappeared. I wholeheartedly recommend it to everyone!

I am very happy with COSRX The Niacinamide 15 Serum. The serum absorbs quickly into the skin, doesn't leave a sticky feeling, and significantly improves skin tone. I love how it helps reduce pigmentation spots and gives the skin a fresh, healthy look. I would definitely recommend it to those looking for an effective niacinamide serum for daily skin care.

Great serum, I've bought it again. My skin looks fresher and more well-groomed, my pores are smaller. I use it every day, both in the morning and in the evening.

I 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 a light texture, is quickly absorbed, and is not sticky. It can be a little drying, so it is important to apply a moisturizer.

This serum with a slightly viscous consistency beautifully nourishes and hydrates the skin, evens out skin tone, and reduces the appearance of hyperpigmentation. It absorbs very quickly into the skin, leaving it hydrated and plump to the touch.