What is Caprylic Acid?
Chemically, Caprylic Acid is a fatty acid. A short C8 fatty acid rated 1/5. Below the malassezia chain-length range, so usually treated as fungal-acne safe.
You may see it on labels as Caprylic Acid, Octanoic Acid, so it can hide under more than one name in an ingredient list.
Where Caprylic Acid shows up
Caprylic Acid is commonly formulated into cleansers, cream bases, and bar soaps, where it builds texture and lather. Separately from clogging, its irritancy is rated 3/5 — high enough to be worth noting for sensitive skin.
Is Caprylic Acid bad for acne-prone skin?
Because it barely registers on the comedogenic scale, Caprylic Acid is generally a safe pick for breakout-prone skin and is often recommended as a gentler alternative to heavier ingredients.