Fatty Acids
Also known as: Essential Fatty Acids, EFAs, Oleic Acid, Linoleic Acid, Linolenic Acid, Palmitic Acid, Stearic Acid
Long-chain organic molecules that nourish, soften skin and strengthen the natural moisture barrier.
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Get the appWhat it does
Fatty acids penetrate the stratum corneum to hydrate and condition skin, while also reducing transepidermal water loss (TEWL). They are key structural components of the skin's lipid barrier, helping maintain integrity and resilience. Their emollient properties smooth texture and improve softness.
Benefits
- Strengthens skin barrier function
- Reduces moisture loss and dryness
- Improves skin softness and texture
- Supports natural lipid balance
- May reduce sensitivity and irritation
Who it suits
- Dry and dehydrated skin
- Sensitive or compromised barrier
- Mature skin
- All skin types (varies by specific fatty acid type)
How to use
Use in serums, moisturizers, or oils as part of your regular skincare routine, morning and/or night. Layer under or mix with other hydrating products for enhanced barrier support.
Pairs well with
Humectants (glycerin, hyaluronic acid), Ceramides, Cholesterol, Soothing agents (centella, allantoin)
Be careful pairing with
none notable
Safety & cautions
Generally well-tolerated, but some individuals may experience sensitivity depending on the source and concentration. Those with acne-prone skin should patch-test, as certain formulations may be occlusive.
Educational information, not medical advice. Concentration and formulation change how an ingredient behaves.