What a 2/5 rating means
On the comedogenic scale, a 2 is still within the non-comedogenic range that dermatologists generally consider low-risk. That places Lanolin Alcohol in the range most people, including many with acne-prone skin, tolerate well.
One thing the number cannot tell you is concentration. Ingredients are listed in descending order, so Lanolin Alcohol near the end of a label is present in tiny amounts and matters far less than the same ingredient near the top.
About Lanolin Alcohol
It is a lanolin derivative, sourced from sheep's wool and known for deep, occlusive moisture. The alcohol fraction of lanolin, used as an emulsifier and emollient. Low-moderate comedogenicity at 2/5.
On a label it can read as Lanolin Alcohol, Wool Alcohol, Sheep Alcohol — worth knowing when you scan an ingredient deck.
Lanolin Alcohol in makeup and skincare
It is a classic in lipsticks, tinted balms, and heavy moisturisers. Its irritancy is rated separately at 0/5, which is low.
If you deal with fungal acne (malassezia folliculitis) rather than ordinary clogged pores, note that Lanolin Alcohol is among the fatty-acid or ester-type ingredients that community sources commonly avoid — a separate concern from its comedogenic score, and one with weaker evidence behind it.