Ingredient Guide
Linoleic Acid
Also known as: Linoleic Acid, Omega-6 Fatty Acid, 18:2 Fatty Acid
All skin typesParticularly beneficial for dry and acne-prone skin
What It Is
An essential omega-6 polyunsaturated fatty acid that is a key component of skin's own lipid barrier. Often derived from plant oils like sunflower, rosehip, or hemp seed oil in cosmetics.
What It Does
Supports the skin's natural barrier lipid composition, reduces transepidermal water loss, and has anti-inflammatory properties.
Best For
Barrier supportDry or acne-prone skinInflammatory concerns
Benefits
- Skin-identical fatty acid — closely mirrors skin's natural lipid composition
- Supports barrier integrity and reduces TEWL
- Anti-inflammatory properties
- Shown to help normalize sebum composition in acne-prone skin
When to Be Careful
- Prone to oxidation — formulas containing it should be well-preserved and stored correctly
Commonly Found In
Barrier moisturizersNMF formulasFace oilsAcne treatments
Products Containing Linoleic Acid
FAQs About Linoleic Acid
Is linoleic acid good for acne?
Research suggests that acne-prone skin often has lower linoleic acid levels in sebum, leading to more comedogenic sebum composition. Topical linoleic acid may help normalize this. Overall a beneficial fatty acid for acne-prone skin.
What is the difference between linoleic acid and oleic acid?
Linoleic acid is lighter, more skin-compatible for oily and acne-prone skin. Oleic acid is richer and more occlusive — better for dry skin. Face oils with higher linoleic ratios suit oily/combination skin better.