Glossary
Organic acid molecules that are the building blocks of fats and oils. In skincare, specific fatty acids like oleic, linoleic, stearic, and palmitic acid determine how an oil feels on the skin, how quickly it absorbs, and whether it supports or disrupts the skin barrier.
Every natural oil and butter has a unique fatty acid profile, a specific ratio of different fatty acid types that determines its physical characteristics and skin effects. Understanding fatty acids is the key to understanding why coconut oil feels different from argan oil, why some oils clog pores and others do not, and why certain butters absorb quickly while others sit on the surface.
Oleic acid (omega-9) is a heavier fatty acid that provides deep, lasting moisture but penetrates the skin slowly. Oils high in oleic acid (olive, avocado, sweet almond) feel richer and may be comedogenic for some people. They excel on very dry or mature skin that needs intensive nourishment.
Linoleic acid (omega-6) is lighter, absorbs quickly, and helps regulate sebum production. Oils high in linoleic acid (hemp seed, argan, grapeseed) are better suited for oily and acne-prone skin. Research shows that acne-prone individuals often have lower linoleic acid levels in their sebum, and supplementing with linoleic-rich oils can help rebalance oil production.
Stearic acid is a saturated fatty acid that gives solid fats their firmness. It is abundant in shea butter, cocoa butter, and kokum butter. Stearic acid reinforces the skin barrier and has a smooth, dry-touch feel on the skin.
Palmitic acid is another common saturated fatty acid found in palm oil, cocoa butter, and beeswax. It provides occlusive protection and contributes to product structure.
When we select ingredients for our products, we consider the fatty acid profile of each component. Our Facial Balm uses argan oil (high linoleic) for lightweight absorption and sebum regulation, paired with kokum butter (high stearic) for barrier support. The combination delivers comprehensive skincare without the heaviness of oleic-dominant formulations.
Oleic acid is not inherently bad, but oils very high in oleic acid (like olive oil) can be comedogenic for some people with acne-prone or oily skin. Linoleic acid-rich oils are generally safer choices for facial use on acne-prone skin because they are lighter and help regulate sebum production.
Shea butter's fatty acid profile is approximately 40-55% oleic acid, 35-45% stearic acid, 5-8% palmitic acid, and 3-8% linoleic acid. This balanced profile gives it a rich but not overly heavy feel that absorbs at a medium rate.
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