What is Cetyl Alcohol?
Chemically, Cetyl Alcohol is a fatty alcohol (a waxy conditioning ingredient, not a drying alcohol). A fatty alcohol (not a drying alcohol) used to soften and thicken. Rated 2/5 and considered fungal-acne safe.
You may see it on labels as Cetyl Alcohol, Hexadecyl Alcohol, Hexadecan-1-Ol, so it can hide under more than one name in an ingredient list.
Where Cetyl Alcohol shows up
Cetyl Alcohol is commonly formulated into creams, conditioners, and lotions, where it thickens and softens. Separately from clogging, its irritancy is rated 2/5 — low, so it's unlikely to sting or sensitise on its own.
Is Cetyl Alcohol bad for acne-prone skin?
That low score makes Cetyl Alcohol a reasonable choice even for acne-prone skin. As always, individual reactions vary, but it is not a likely cause of clogged pores.