Ingredients rated 5/5
15 ingredients carry a published comedogenic rating of 5 — highest on the 0–5 scale. Grouped by ingredient family; each entry shows its source and confidence tier.
Esters (5)
Surfactants and emulsifiers (3)
Other (2)
Botanical extracts (1)
Thickeners and film formers (1)
Fatty alcohols (1)
Lanolin and derivatives (1)
Plant and animal oils (1)
About these ratings
Every number is a published rabbit-ear assay grade (Fulton 1989 lineage), shown with its source and a confidence tier on the ingredient page. A rating describes a raw ingredient as tested, not a finished product: concentration, formulation and individual skin decide real-world behaviour. 3/5 and up is where the 1989 AAD symposium recommended caution. How we rate · full sortable table and CC-BY download.