CosRx The Niacinamide 15 serum

My 14-year-old daughter has been using this serum as part of her skincare routine, and she's been really pleased with it. It absorbs quickly, feels lightweight on the skin, and doesn't leave any sticky residue. Since she started using it, her skin looks clearer, and some of the marks left by previous breakouts have started to fade. It works well alongside her other skincare products and hasn't irritated her skin. A little goes a long way, so the bottle lasts well. Overall, it's been a great addition to her routine, and we'd happily buy it again.

It’s bit heavy as I have used other niacinamide serum as well but this one feels heavy in skin

Early days but good start! No reaction and I have ulta sensitive skin. I only use this at night via the sandwich method (cleanse, tone, active, moisturiser). Loving the CosRx range as a whole.

Good but took so long to comeVery affordable I must say

Not used it long enough to comment fully but does seem to help with excess oily on my t zone.