The Benefits of Shea Butter for Skin and Hair

Jul 15
5 min read

Shea butter is one of the most versatile and well-researched natural skincare ingredients in the world. Extracted from the nut of the African shea tree (Vitellaria paradoxa), it has been used across West and Central Africa for centuries as a food, a medicine, and a skin protectant. Today it is one of the most widely used ingredients in natural skincare - and for good reason. This guide covers everything you need to know about shea butter: what it is, what the science says, and how to use it effectively.

What Is Shea Butter?

Shea butter is a fat extracted from the nut of the shea tree, which grows across a belt of sub-Saharan Africa from Senegal to Ethiopia. The nuts are harvested, dried, crushed, and boiled to extract the fat, which solidifies at room temperature into a creamy, ivory-coloured butter with a mild, nutty scent.

There are two main grades of shea butter used in skincare:

Raw (unrefined) shea butter: Extracted without chemical solvents, retaining its natural colour (ivory to yellow), scent, and full complement of vitamins and bioactive compounds. This is the grade used in high-quality natural skincare.

Refined shea butter: Processed with chemical solvents and bleaching agents to produce a pure white, odourless product. The refining process removes many of the beneficial compounds, including vitamins A and E and the anti-inflammatory triterpenes.

At Mayka Skincare, we use only raw, unrefined shea butter in our formulations to preserve the full spectrum of its natural benefits.

The Science Behind Shea Butter

Shea butter's effectiveness is not just traditional knowledge - it is backed by a growing body of scientific research. Its benefits come from a unique combination of fatty acids, vitamins, and bioactive compounds:

Fatty Acid Profile

Shea butter is composed primarily of four fatty acids:

- Oleic acid (40-60%): A monounsaturated omega-9 fatty acid that penetrates deeply into the skin, softening and nourishing without leaving a greasy residue. It also helps other active ingredients penetrate more effectively.

- Stearic acid (20-50%): A saturated fatty acid that helps to repair and restore the skin's protective barrier. It gives shea butter its solid texture at room temperature.

- Linoleic acid (3-11%): An essential omega-6 fatty acid that the body cannot produce itself. It is a key component of the skin barrier and is often deficient in dry, eczema-prone, and acne-prone skin.

- Palmitic acid (2-9%): A saturated fatty acid that contributes to the emollient and barrier-protective properties of shea butter.

Vitamins A and E

Raw shea butter is a natural source of both vitamin A (as beta-carotene) and vitamin E (as tocopherols). Vitamin A supports cell turnover and collagen production, helping to reduce the appearance of fine lines and hyperpigmentation over time. Vitamin E is a powerful antioxidant that protects the skin from free radical damage caused by UV exposure and environmental pollution.

Triterpenes - The Anti-Inflammatory Compounds

Perhaps the most scientifically significant compounds in shea butter are its triterpenes - specifically lupeol, butyrospermol, and parkiol. These compounds have been shown in multiple studies to have significant anti-inflammatory properties. A 2010 study published in the Journal of Oleo Science found that shea butter triterpenes inhibited the production of pro-inflammatory cytokines, providing a scientific basis for shea butter's traditional use in treating inflammatory skin conditions such as eczema and dermatitis.

The Benefits of Shea Butter for Skin

1. Deep Moisturisation and Barrier Repair

Shea butter is both an emollient and an occlusive. As an emollient, it fills in the gaps between skin cells, making the skin feel smooth and soft. As an occlusive, it forms a protective layer on the skin's surface that slows water evaporation. This dual action makes it exceptionally effective for dry, dehydrated skin - it does not just sit on top of the skin, it actively repairs the barrier from within.

2. Eczema and Psoriasis Relief

The combination of anti-inflammatory triterpenes, barrier-repairing fatty acids, and vitamins A and E makes shea butter one of the most effective natural treatments for eczema and psoriasis. A 2019 review in the Journal of Dermatological Treatment found that shea butter was effective at reducing eczema severity scores and improving skin barrier function. Many dermatologists now recommend shea butter as a first-line emollient for eczema management.

3. Anti-Ageing and Collagen Support

The vitamin A content in raw shea butter supports collagen synthesis - the process by which the skin produces new collagen fibres to maintain its firmness and elasticity. Regular use of shea butter has been shown to improve skin elasticity and reduce the appearance of fine lines over time. The antioxidant vitamin E also protects existing collagen from free radical degradation.

4. Stretch Mark Prevention and Reduction

Shea butter is one of the most popular natural remedies for stretch marks, and there is scientific support for this use. A 2016 study found that a cream containing shea butter significantly reduced the severity of stretch marks in pregnant women compared to a placebo. The mechanism is thought to involve improved skin elasticity and barrier function, which reduces the likelihood of the skin tearing under rapid stretching.

5. Acne-Prone Skin - Non-Comedogenic and Anti-Inflammatory

Despite being a rich, fatty butter, shea butter has a comedogenic rating of 0 to 2, meaning it is very unlikely to clog pores. Its high linoleic acid content is particularly beneficial for acne-prone skin - research has shown that acne-prone skin tends to be deficient in linoleic acid, and topical application can help to normalise sebum composition and reduce breakouts. The anti-inflammatory triterpenes also help to calm the redness and swelling associated with active spots.

6. Sun Damage and UV Protection

Raw shea butter contains cinnamic acid esters, which provide a very low level of natural UV protection (estimated at SPF 3-4). While this is nowhere near sufficient as a standalone sunscreen, it does provide an additional layer of protection against incidental UV exposure. The vitamin E content also helps to neutralise free radicals generated by UV exposure.

7. Hair and Scalp Benefits

Shea butter is not just for skin. Applied to the hair and scalp, it seals the hair cuticle, reducing frizz and breakage. It is particularly beneficial for dry, coarse, or chemically treated hair. On the scalp, its anti-inflammatory properties can help to soothe conditions such as seborrhoeic dermatitis and scalp psoriasis.

How to Use Shea Butter

As a Body Moisturiser

Apply a small amount of raw shea butter to damp skin immediately after bathing. The moisture on the skin helps the shea butter spread more easily and locks in hydration. A little goes a long way - start with a pea-sized amount and warm it between your palms before applying.

As a Face Moisturiser

Raw shea butter can be used directly on the face, particularly for dry and mature skin types. For oily or acne-prone skin, it is better used as part of a formulated moisturiser where it is blended with lighter oils to reduce the richness. Our formulations use shea butter as a key ingredient alongside lighter botanicals to create a texture that is nourishing without being heavy.

As a Lip Balm

Shea butter is one of the best natural lip treatments. Apply a small amount to dry or chapped lips before bed for overnight repair.

As a Hair Mask

Warm a small amount of shea butter between your palms and apply to the mid-lengths and ends of dry hair. Leave for 20 to 30 minutes, then shampoo out. Use once a week for noticeably softer, more manageable hair.

Shea Butter in Mayka Skincare Products

Shea butter is one of the core ingredients in the Mayka Skincare range. You will find it in our moisturisers, body butters, soaps, and hair care products - always in its raw, unrefined form to preserve the full spectrum of its natural benefits. Combined with other carefully chosen botanicals, it forms the foundation of formulations that are genuinely effective for sensitive, dry, and reactive skin.