Quick answer
- A Korean doctor reads niacinamide 10% + zinc 1% as a formula aimed at excess sebum, better suited to oily skin than dry skin.
- A Korean pharmacist separates pores clogged with sebum and dead skin from pores that have stretched, and matches different products to each.
- The doctor warns the high concentration can sting sensitive skin and suggests diluting it 1:1 with a hydrating ampoule.
Niacinamide 10% + zinc 1%: who it suits
The doctor reviewed The Ordinary Niacinamide 10% + Zinc 1% and judged it by what the formula is built to do.
Irritation and how to use it
High concentrations are the trade-off the doctor flags most clearly.
Clogged pores vs. stretched pores
The pharmacist treats “big pores” as two different problems and says one product rarely fixes both.
This article is based on our research into Korean-language videos by skincare professionals. It is general information, not medical advice. Disclaimer.
