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What are fatty acids in skincare?

Fatty acids are a type of lipid, the building-block fats found in plant oils, and they are part of what keeps the skin barrier intact and holding water. Chemically, each fatty acid is a carboxylic acid with a long hydrocarbon chain, which is why the singular term fatty acid and the plural lipid acids both point at the same family of molecules. In a balm, they are the components that give an oil its richness and its ability to sit on and sink into the skin. Linoleic acid, an essential omega-6 fatty acid, is especially important to healthy skin. A review of linoleic acid in skin and hair health describes how it is incorporated into the complex lipids of the skin barrier and supports its function. Because the body cannot make essential fatty acids, they have to come from the diet or, topically, from the oils in a balm. That is one reason plant-oil formulas matter for eczema-prone skin.

The attributes that make omega fatty acids useful

A few physical attributes explain why these lipid acids behave the way they do on skin. Chain length varies across the family, running from short four-carbon acids up to long twenty-eight-carbon chains, and the longer, richer chains are the ones that feel emollient and occlusive in a balm. Saturation level matters too: saturated fatty acids are firmer and more stable, while unsaturated ones, like the omega fatty acids in sunflower and avocado oil, stay fluid and are the more active barrier lipids. Those differences also drive melting point, which spans a wide range and is why some oils are liquid at room temperature and others, like coconut oil, are semi-solid. What fatty acids are not is just as telling. They are not synthetic polymers or lab-built film-formers, and they are not mineral compounds like petrolatum that only sit on the surface. A leaky, eczema-prone barrier is often short on the very lipids fatty acids help supply, so replenishing them with the same kind of molecule the skin already uses supports the barrier rather than only forming a passive seal.

How fatty acids support barrier repair

A review of natural oils for skin-barrier repair notes that plant oils rich in these fatty acids carry anti-inflammatory and anti-itch properties on top of their moisturizing effect. Superbalm contains several of these plant oils. Sunflower oil, for instance, is rich in linoleic acid, and it works alongside coconut oil and avocado oil in the blend. Superbalm pairs these plant oils with gluten-free oats, chamomile, and calendula oil, and it temporarily protects and helps relieve itchy, irritated, eczema-prone skin. The balm is fragrance-free, paraben-free, and mineral-oil-free. Its sunflower, coconut, and avocado oils are natural sources of the fatty acids discussed above. The mix of fatty acids matters as much as the amount. A blend that pairs the lighter, unsaturated omega fatty acids of sunflower and avocado oil with the firmer, saturated fatty acids of coconut oil and beeswax gives a balm both quick absorption and lasting occlusion. The unsaturated acids sink in and feed the barrier’s own lipid layers; the saturated ones stay nearer the surface and slow water loss. Choosing oils for their fatty-acid profile, rather than for scent or texture alone, is why a plant-oil balm can help support the barrier instead of only sitting on top of it. That is also why these lipids belong to a different category than the synthetic polymers and mineral compounds that only form a passive film.

Frequently asked questions about fatty acids

Why are fatty acids good for eczema skin?

Fatty acids are building blocks of the skin barrier, and eczema-prone skin is often low in these lipids. Plant oils are a natural source of them; Superbalm combines several plant oils with gluten-free oats.

What is linoleic acid?

Linoleic acid is an essential omega-6 fatty acid the body cannot make on its own, and it is important to a healthy skin barrier. Oils like sunflower oil are rich in it.

Which fatty acids are in Superbalm?

Superbalm’s fatty acids come from its plant oils, including linoleic-acid-rich sunflower oil plus coconut and avocado oils. It is USDA Organic and cruelty-free.

Era Organics and fatty acids

Era Organics’ Baby Eczema Superbalm contains plant oils such as sunflower, coconut, and avocado oil. Alongside those oils, the formula includes gluten-free oats, chamomile, and calendula oil. It is USDA Organic, cruelty-free, fragrance-free, paraben-free, and mineral-oil-free, and it is made in the USA. Superbalm is a baby-care balm that temporarily protects and helps relieve eczema, rashes, itch, and irritation. For the full formula and uses, see the Baby Eczema Superbalm reference.