Shea butter is a good, inexpensive moisturizer. It is a plant fat that softens dry skin and slows water loss from the skin's surface, which is why it shows up in so many lotions, balms and baby products. The bigger claims you may have read, that it cures eczema, erases scars or stretch marks, reverses aging or works as a sunscreen, are not supported by good evidence.
What shea butter is
Shea butter is the fat pressed or boiled out of the nuts of the shea tree (Vitellaria paradoxa), which grows across the savanna belt of West and Central Africa. It has traditionally been made by hand, mostly by women: the nuts are dried, crushed, roasted and ground, then kneaded with water until the fat separates and can be skimmed off. In the same regions it is also used as a cooking fat.
Chemically, shea butter is mostly fatty acids, mainly stearic and oleic acid. In the samples summarized in a 2024 cosmetic safety assessment, stearic acid made up about 26 to 50 percent and oleic acid about 37 to 62 percent (Burnett et al., 2024). A small fraction is made up of other plant compounds, including tocopherols (forms of vitamin E) and triterpenes, which researchers have extracted from shea fat (see the anti-inflammatory section below). Refining can remove some of these minor compounds. The one laboratory study we found measured fractionation (splitting shea butter into a solid and a liquid part), not ordinary refining: it found about 87 percent less tocopherol in the solid (stearin) fraction and about 8 percent less in the liquid (olein) fraction (Abdel-Razek et al., 2023). Our guide to refined vs unrefined shea butter covers the differences.
Shea butter is solid at room temperature and softens at skin temperature, so it melts as you rub it in.
What the evidence supports, at a glance
| Common claim | What we know | Verdict |
|---|---|---|
| Moisturizes dry skin | It is an emollient and occlusive fat. It softens skin and slows water loss. | Supported |
| Soothes chapped lips, hands, elbows and heels | Commonly reported, and consistent with how occlusive fats work. | Reasonable |
| Helps with eczema | Moisturizing is a standard part of eczema care. Shea butter can be one moisturizer option. It does not treat the disease. | Only as a moisturizer |
| Fades scars | No good evidence. Many scars fade on their own. | Not supported |
| Prevents or removes stretch marks | No good evidence. Similar oils and butters failed to prevent stretch marks in studies. | Not supported |
| Works as a sunscreen | It is not an approved sunscreen ingredient. | No |
| Builds collagen or reverses wrinkles | No good evidence. Moisturized skin looks smoother for a while. | Not supported |
| Clears acne | No good evidence. It can feel heavy on oily skin. | Not supported |
How shea butter moisturizes
Moisturizers work in roughly three ways. Humectants such as glycerin draw water into the skin. Emollients fill the small gaps between skin cells so skin feels softer. Occlusives sit on top and slow water evaporating from the skin.
Shea butter is an emollient and an occlusive. It is not a humectant, so it does not pull moisture out of the air, as some older articles claim. It also does not deliver water "deep into" the skin. What it does well is hold in the water that is already there.
That is why timing matters. Shea butter works best on skin that is still slightly damp, for example within a few minutes of a bath or shower. On very dry skin, some people put a humectant lotion on first and seal it with a thin layer of shea butter.
Is shea butter good for your face?
It depends on your skin type.
- Dry or weathered skin: shea butter is a reasonable choice, especially in cold, windy or dry weather. A thin layer at night is often enough.
- Sensitive skin: plain shea butter has no added fragrance, which many people with sensitive skin prefer. Patch test first (see below).
- Oily or acne-prone skin: pure shea butter can feel heavy. Whether it clogs pores is not well studied, and the "comedogenic ratings" you see online are not standardized. If you want to try it, use a small amount, or choose a light lotion with shea lower down the ingredient list.
Older claims that shea butter makes people "look ten years younger," rebuilds collagen or removes wrinkles have no evidence behind them. Well-moisturized skin can look smoother and less dull, but the effect lasts only as long as you keep moisturizing.
Shea butter and eczema
Atopic dermatitis, the most common form of eczema, is a long-lasting condition that tends to come and go in flares. Researchers do not know exactly what causes it, but changes in the skin's protective barrier let moisture escape, and dry skin then becomes inflamed and itchy (NIAMS).
NIAMS lists moisturizing as a core part of eczema care. It advises applying moisturizer right after bathing and choosing creams and ointments over thin lotions with a lot of water or alcohol (NIAMS: diagnosis and treatment). Plain shea butter behaves much like an ointment, and some families use it, or a cream containing it, as their everyday moisturizer.
What shea butter does not do is cure eczema. Claims that it clears eczema "within a week" or stops it coming back are not supported. Treatment plans often also include medicines such as corticosteroid creams, which a clinician prescribes.
If you are thinking about using shea butter on a baby or child with eczema:
- Ask your pediatrician first, especially for infants.
- Use plain, fragrance-free shea butter, not a scented blend.
- Test a small patch and watch it for a day or two.
- Don't stop prescribed treatments in favor of shea butter.
See a doctor if the skin oozes, crusts or bleeds, looks infected, keeps someone awake at night, or does not improve with regular moisturizing.
Scars and stretch marks
Scars. The American Academy of Dermatology (AAD) notes that many scars fade without any treatment, while keloids and sunken acne scars do not (AAD). Keeping healed skin moisturized can make a scar feel softer and less tight. There is no good evidence that shea butter removes scars or restores normal skin color. For a raised, sunken or bothersome scar, a dermatologist can explain treatments that do have evidence.
Stretch marks. Stretch marks are common in pregnancy, growth spurts and after weight changes. The AAD reports that in studies, almond oil, cocoa butter, olive oil and vitamin E did not prevent stretch marks (AAD: stretch marks). Shea butter hasn't been shown to work better than these. The AAD says products containing centella or hyaluronic acid may help prevent them.
Rubbing shea butter into a pregnant belly can still ease dryness and itching. Just don't count on it to prevent or erase stretch marks.
Shea butter is not a sunscreen
Shea butter is often described online as a natural sunblock. It is not one. In the United States, sunscreens are regulated as drugs, and only FDA-permitted active ingredients can be sold for sun protection (FDA). Shea butter is not one of them.
The FDA advises using a broad-spectrum sunscreen with an SPF of 15 or higher, reapplying at least every two hours, and covering up with clothing and hats. If you like shea butter, use it under or alongside sunscreen, never instead of it.
Anti-inflammatory and antioxidant claims
The evidence here comes from animals, not people. In a 2010 study, triterpene compounds extracted from shea fat reduced chemically induced ear inflammation in mice, and one of them reduced paw swelling in rats (Akihisa et al., 2010). We found no human trials of these compounds for inflammation. That is a long way from showing that rubbing shea butter on your skin reduces inflammation in a meaningful way. Older claims that shea butter has anti-cancer effects, neutralizes insect venom or relieves joint pain within minutes have no clinical evidence behind them.
A quick way to spot overselling: under US law, a product that claims to treat a disease, regenerate cells or restore hair growth is making a drug claim, not a cosmetic one (FDA). Shea butter sold as a cosmetic shouldn't promise any of these.
How to use shea butter on skin
- Patch test first. Rub a small amount on your inner forearm and check it over the next 24 to 48 hours for redness or itching.
- Warm it. Scoop a pea-sized amount and rub it between your palms until it softens.
- Apply to damp skin. Use it right after a bath or shower to seal in water.
- Go thin on the face, thicker on rough spots. Lips, cuticles, elbows, knees and heels can take more.
- Use it at night on the face if it feels too greasy during the day.
Shea butter soap can feel mild, but soap is rinsed off, so it adds little lasting moisture. A shea-based cream or the plain butter after washing does more.
Safety
- Shea butter is generally well tolerated on the skin. Reactions are more often caused by fragrances or essential oils added to shea blends than by plain shea.
- Nut allergies: in 2025 the FDA removed shea nut from its list of tree nuts that count as major food allergens (FDA). Answering a question about peanut and tree-nut allergies, an allergist for the Asthma and Allergy Foundation of America said shea butter poses no known or likely risk to consumers, but that this does not guarantee no reaction (AAFA, 2022). If you or your child has a nut allergy, still check with your allergist before using shea products.
- Don't put it on open or infected wounds.
- Store it somewhere cool and dark. If it smells sour or "off," it has gone rancid; throw it out.
What to do next
- Choosing a jar? Read refined vs unrefined shea butter: which to choose.
- Using it on hair too? See shea butter for hair: what it can and can't do.
- If you want a practitioner who looks at diet, sleep and skin together, alongside your medical care, you can browse naturopathic doctors in our directory.
When to see a medical doctor or dermatologist: a rash that spreads, oozes or looks infected; eczema that keeps a child or adult awake or doesn't improve with moisturizing; a new or changing mole or spot; or a scar that is raised, painful or growing.
This article is for general education and is not medical advice.
Last reviewed: October 2026