What is Acetone?
Chemically, Acetone is a solvent. A stripping solvent rated 0 for clogging but a maximum 5 for irritancy.
Where Acetone shows up
Acetone is commonly formulated into toners, nail products, and cleansing formulas. Separately from clogging, its irritancy is rated 5/5 — high enough to be worth noting for sensitive skin.
Is Acetone bad for acne-prone skin?
Because it barely registers on the comedogenic scale, Acetone is generally a safe pick for breakout-prone skin and is often recommended as a gentler alternative to heavier ingredients.