What Is Shea Butter? Origins, Composition & Why It Works
Shea butter is a plant fat pressed from the nuts of the shea tree (Vitellaria paradoxa), known in French-speaking West Africa as karité. The tree grows wild across a 3,000-mile band of African savanna — the “shea belt” — stretching from Senegal in the west to South Sudan and Uganda in the east. It is not farmed in plantations: nearly all shea nuts are gathered by hand from wild trees, overwhelmingly by women, which is why so many brands in our directory trace their supply to women’s cooperatives in Ghana, Togo, Burkina Faso, and Uganda.
What is shea butter made from?
Shea butter is made from one thing: the fat in the kernel of the shea tree's nut. Nothing is added to pure shea butter. The tree's plum-like fruit holds a single large nut, and the kernel inside that nut is roughly half fat by weight. Crushing, roasting and kneading the kernels releases that fat, which cools into the solid butter. The rest of the fruit, including its sweet pulp, plays no part in the butter.
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How the butter is made
Traditional processing has changed little in centuries. The fruit is collected and the nut inside is boiled, dried, and cracked to free the kernel. Kernels are crushed, roasted, and ground into a paste, which is then kneaded with water so the fat separates. That fat is scooped off, heated to remove remaining water, and left to cool into the ivory-colored solid sold as raw or unrefined shea butter. Industrial producers take the same kernels through mechanical pressing and then, for refined shea butter, through deodorizing and filtering steps — the trade-offs are covered in our guide to refined vs. unrefined shea.
Shea butter ingredients: what's actually in it
Pure shea butter has one ingredient. On a cosmetic label it appears under its INCI name, Butyrospermum Parkii (Shea) Butter, sometimes written Vitellaria Paradoxa (Shea) Butter or simply “shea butter.” If a jar sold as 100% shea lists anything else (fragrance, other oils, preservatives), it's a blend, not straight shea. Every raw butter in our directory is a single-ingredient shea. For lotions and hair products, our made-with-shea page shows where shea actually sits in each formula.
Chemically, that one ingredient is mostly triglycerides built from two fatty acids: stearic acid, which gives it its firm, buttery body, and oleic acid, which makes it melt on skin contact. The exact ratio varies by region — East African “nilotica” shea is naturally higher in oleic acid, which is why it is softer and creamier than West African shea (see nilotica vs. West African).
| Fatty acid | Typical share of shea's fat (published ranges) |
|---|---|
| Oleic | About 37–62% — highest in nilotica |
| Stearic | About 26–50% — highest in West African shea |
| Palmitic | About 3–8% |
| Linoleic | About 1–11% |
| Arachidic | Up to about 3.5% |
What makes shea unusual among plant butters is its high unsaponifiable fraction — the portion of the fat that isn't triglycerides at all. This fraction carries most of the ingredients people buy shea for: triterpene esters (including cinnamic acid esters), tocopherols (vitamin E), phytosterols, and allantoin. Research attributes shea's soothing, anti-inflammatory reputation largely to these compounds. They are also the part most diminished by aggressive refining, which is the core argument for unrefined butter.
Is shea butter a nut?
Shea butter comes from a nut, but US regulators no longer count shea as a tree nut. The butter is pressed from the kernel of the shea tree's nut, the same way other nut butters and oils are made. The FDA used to list shea nut among the tree nuts that must be flagged on food allergen labels. In its January 2025 final guidance it removed shea from that list, along with coconut and several other nuts, so US food labels no longer have to declare shea as a tree nut.
Two caveats. That guidance covers food labeling, not cosmetics, and it says nothing about any one person's allergy. Allergic reactions to topical shea are considered rare, because the proteins that trigger nut allergies largely don't survive processing. Still, if you have a tree-nut allergy, ask your doctor or allergist before using shea, and patch-test a small amount first.
Why it works on skin and hair
Shea butter melts at roughly body temperature, spreads as an occlusive layer that slows water loss, and softens skin as an emollient. It is widely used on dry skin, rough patches, lips, cuticles, and as a sealing step on textured hair. It is generally considered low on the comedogenic scale, though very oily skin types often prefer it on the body rather than the face.
A note on claims: shea butter has real evidence as a moisturizer and emollient, and its compounds are being studied for more. But it is a cosmetic, not a medicine — anyone using it for a skin condition like eczema should treat it as a supportive moisturizer, not a treatment, and talk to a dermatologist about anything persistent.
Quick facts
| Botanical source | Vitellaria paradoxa (karité tree), wild-harvested |
|---|---|
| Made from | The fat of the shea nut kernel, nothing added |
| Label (INCI) name | Butyrospermum Parkii (Shea) Butter |
| Tree nut? | From a nut, but removed from the FDA's food-allergen tree-nut list in 2025 |
| Where it grows | The African “shea belt”: Senegal east to South Sudan/Uganda |
| Key fatty acids | Stearic (firmness) and oleic (melt & spread) |
| Notable minor compounds | Triterpene esters, vitamin E, phytosterols, allantoin |
| Melting range | Roughly 89–100°F — melts on skin contact |
| Shelf life | Typically 12–24 months stored cool and dark |
Where to buy: the current winners
Each pick is computed from the verified data in our directory (price per ounce, certifications, sizes), not chosen by opinion, and it updates whenever prices do.
Want to compare everything? The directory lists every butter we track with origin, refinement, certifications, and verified price per ounce.