Researched by Helena DeMaria-Williams
Formula IngredientEmollientOleic Acid
INCI: Oleic Acid
Oleic acid is a monounsaturated omega-9 fatty acid found abundantly in plant oils such as olive, avocado, macadamia, and marula oils. It works by integrating into the skin's lipid barrier, softening and conditioning the skin while also functioning as a penetration enhancer that helps other actives absorb more effectively. Its relatively large, non-polar molecular structure makes it highly nourishing but means it sits heavier on the skin than linoleic acid-rich alternatives.
Category
Emollient
Irritation Risk
Low
Skin Types
dry skin, mature skin, normal skin, dehydrated skin
What does this do in a formula?
deep moisturisation, skin barrier support, emollient softening, penetration enhancement, wound healing support
Is Oleic Acid safe? Key considerations
Can Oleic Acid cause irritation?
Low RiskOleic acid is generally well tolerated and not considered a direct irritant. It is not restricted under EU Annex II or III. However, it can disrupt the skin barrier at high concentrations or with prolonged use in sensitive individuals.
Does Oleic Acid increase sun sensitivity?
No RiskOleic acid does not increase photosensitivity. No SPF precautions are required specifically due to this ingredient.
Is Oleic Acid safe during pregnancy?
SafeOleic acid is a naturally occurring fatty acid found in many foods and cosmetic oils. It is not flagged as a pregnancy concern by EWG or major dermatological sources, and is considered safe for topical use during pregnancy.
How does Oleic Acid work?
Oleic acid is a monounsaturated omega-9 fatty acid found abundantly in plant oils such as olive, avocado, macadamia, and marula oils. It works by integrating into the skin's lipid barrier, softening and conditioning the skin while also functioning as a penetration enhancer that helps other actives absorb more effectively. Its relatively large, non-polar molecular structure makes it highly nourishing but means it sits heavier on the skin than linoleic acid-rich alternatives.
Individuals with acne-prone skin, oily skin, comedone-prone skin should review the considerations above before use.
Which products contain Oleic Acid?
Shop products that contain Oleic Acid
Omega Water Cream
Dewy Sunscreen SPF 30
Supersize Omega Water Cream
Natural Moisturizing Factors + HA
