Surfactant, emulsifying
What is PEG-10 Isostearate?
This ingredient is listed in CosIng, the European Commission’s public database of cosmetic ingredients. The function classes that database records for it are: Surfactant, emulsifying, Surfactant, cleansing.
A function class records the role an ingredient is put in a formula for. It is what the database files the ingredient under, not a finding of ours about what it does on skin.
Which products use it?
Of the 130 products whose labels we have read, one puts this one on the front.

skinnlab
Pore Barrier Cleansing Balm
We checked 3 lines this product advertises against the ingredient list and public documents. One of them holds up. The rest are only partly right or have nothing behind them.
1backed1overstated1no evidence
See the label check (3 lines)
Claims translated from Korean, originals preserved.
- Dispense an appropriate amount of cleansing balm onto dry skin, cleanse as if massaging gently, then finish by washing clean with lukewarm water.
Korean original
물기 없는 피부에 클렌징 밤을 적당량 덜어 부드럽게 마사지하듯 클렌징 해준 후 미온수로 깨끗하게 씻어 마무리해줍니다.
- Pore impurities out without irritation
Korean original
자극없이 모공 노폐물 아웃
- Pore Barrier
Korean original
포어베리어