Ingredient Guide
Oleic Acid
Also known as: Oleic Acid, Omega-9 Fatty Acid, 18:1 Fatty Acid
DryNormalMature skin
What It Is
A monounsaturated omega-9 fatty acid widely found in plant oils (olive oil is predominantly oleic acid). A key component of skin lipids and one of the most common fatty acids in cosmetic formulations.
What It Does
Softens and conditions skin, supports barrier integrity, and helps other lipid-soluble ingredients penetrate the skin.
Best For
Dry skinBarrier supportEmollient care
Benefits
- Rich emollient — softens and conditions dry skin effectively
- Supports barrier lipid replenishment
- Penetration enhancer for lipid-soluble actives
When to Be Careful
- Higher oleic acid ratios in face oils can be comedogenic for some acne-prone skin — choose higher linoleic formulas if prone to breakouts
Commonly Found In
Barrier moisturizersFace oilsBody oilsNMF formulas
FAQs About Oleic Acid
Is oleic acid good for oily skin?
Not ideal for oily or acne-prone skin. Face oils with high oleic acid content (like olive oil) can be comedogenic for some skin types. Linoleic-rich oils are better suited to oily skin.