Shea butter: what concentration and what quantity

100% pure, yet rarely usable as-is on the face. Shea butter is a solid fat: the question is not its concentration – there is only one – but how to prepare it and how much to apply. Three steps change everything, and that's where the difference between a pleasant treatment and a greasy layer lies.

Step 1 — warm it between your fingers

Shea butter melts at around thirty-five degrees Celsius, which is skin temperature. If taken and applied directly, it remains in clumps; warmed for ten seconds between the fingers, it becomes a fluid oil.

This is the step that changes the result the most, and is most often overlooked. Well-warmed shea spreads in a thin layer and penetrates; cold-applied shea remains on the surface.

Take an amount the size of a grain of rice for the face. This quantity seems tiny but is amply sufficient once the butter has melted.

For the body, an amount the size of a hazelnut per area. Entire legs require the equivalent of a teaspoon.

Step 2 — dilute it in a vegetable oil

This is the most useful and simplest preparation. Two-thirds shea butter to one-third vegetable oil results in a creamy texture that is easy to scoop and spread.

Jojoba oil is particularly suitable: light and stable, it does not alter the preservation of the mixture. Sweet almond and argan also work.

For facial use, reverse the proportions: one-third shea to two-thirds oil. The texture becomes light enough for daily application.

Melt the butter in a bain-marie at a low temperature, add the oil off the heat, then cool quickly in the refrigerator. Slow cooling produces grains.

Step 3 — apply it to damp skin

Shea butter does not contain water. It prevents existing water from escaping, which is very different from providing hydration.

Applied to dry skin for twenty minutes, it protects already dehydrated skin. Applied within three minutes after showering, it retains bathwater.

This point applies to all quantities and all preparations. It is the rule that determines the result, before the dosage.

Quantities depending on the area

Face: one grain of rice, in the evening, for dry skin only. On oily or combination skin, it is too occlusive for this area.

Lips: as much as necessary, without limit. This is the area where shea is most immediately useful, and where it can be applied generously.

Body: one hazelnut per area, on damp skin. Elbows, knees, and heels can handle more and can receive two applications per day.

Hair: one tablespoon as a pre-wash mask for medium-length hair. On dry hair after drying, a trace on the ends only – this butter is heavy.

For the face, an amount the size of a grain of rice is sufficient. For hands and elbows, an amount the size of a hazelnut. Shea butter is a nourishing fat whose excess does not penetrate: it remains on the surface and stains clothes.

Organic, unrefined shea butter retains its nutty smell and ivory color. On sensitive skin, this raw version is better tolerated than perfumed versions, whose additives are the primary cause of reactions.

What "100% pure" means

The INCI name is Butyrospermum parkii butter. It should be the only ingredient on the jar of pure shea butter.

Raw, unrefined butter is ivory to pale yellow with a smoky nutty smell. Perfectly white and odorless butter has been refined, thus depleted of unsaponifiables – which is precisely what gives it its cosmetic quality.

Originating from West Africa is the rule: the shea tree only grows there. A mention of country and cooperative is a good sign.

Commercial "shea butter" creams often contain only a few percent. This is not a flaw; it is a different product that is dosed like an ordinary cream.

The butter is extracted from the kernels contained in the shea tree fruit. These kernels are crushed, roasted, then ground: traditional production, still largely manual in West Africa, explains part of the price.

Quality depends more on this production than on the brand. Butter made from well-dried and carefully ground kernels has significantly superior cosmetic properties to an industrial, deodorized product.

It is a natural ingredient in the strict sense: nothing is added to it, nothing is extracted from it when it is raw. Its protective effect comes from its unsaponifiable fraction, which is exceptionally high for a vegetable fat.

What quantity does not change

Applying more does not speed up anything. Beyond what the skin absorbs, the excess remains on the surface and transfers to clothing.

No quantity protects from the sun. The indices sometimes cited for shea are not based on reliable measurements.

And none replaces a source of hydration. On very dry skin, an aqueous phase before shea changes the result more than double the amount of butter.

Well-used natural butter on damp skin performs better than a sophisticated treatment applied to dry skin. This is true for all fats, and particularly for this one.

Its properties do not degrade over time: two years of storage without significant loss. This also makes it an economical ingredient, despite a higher price per kilo than common oils.