INCI: Butyrospermum Parkii (Shea) Butter / Butyrospermum Parkii (Shea) Oil - Also known as: Shea Fat, Karite Butter

QUICK FACTS

What is Shea Butter? 

Shea butter is a fat extracted from the nut of the Vitellaria paradoxa tree, a species native to the savanna belt of sub-Saharan Africa. It has been used in skin and hair care for centuries across the continent of origin, and is now one of the most thoroughly researched natural emollients in cosmetic science. Its fatty acid profile is dominated by stearic acid (typically 35-45%) and oleic acid (40-55%), giving it a semi-solid texture at room temperature that melts readily on contact with skin.

In skincare formulation, shea is used in two primary forms: as the full butter (which contains the complete complement of unsaponifiables alongside the fatty acids) and as refined shea oil (the liquid fraction). Sweet Chemistry uses both - shea butter in the Elasticity Reinforcing Lipid-Cream, where its solid-at-room-temperature character contributes to the formula's structure and richness, and organic shea oil in the Barrier Repairing Oil-Serum, where the liquid form integrates smoothly into the anhydrous carrier base at greater than 5%.

What distinguishes high-quality shea in formulation is the unsaponifiable fraction - a collection of plant sterols, tocopherols, and triterpene alcohols that are associated with the ingredient's calming and barrier-supportive properties beyond simple emollience. These components are retained in the shea used across Sweet Chemistry formulas.

What does it do for skin?

Shea butter functions primarily as a rich emollient and mild occlusive, associated with softening the skin's surface and forming a protective lipid layer that helps slow moisture evaporation. Its high stearic acid content gives it a skin-identical quality - stearic acid is a naturally occurring component of the skin's own intercellular lipid matrix, meaning shea-derived stearic acid is recognized by the skin's barrier environment rather than sitting as a foreign layer on top of it.

The unsaponifiable fraction of shea - particularly its lupeol and other triterpene content - is studied in connection with a more comfortable skin surface and reduced sensitivity in prone skin types. This makes shea a particularly well-suited emollient for the Lipid-Cream, which is designed specifically for dry and dehydrated skin that may also present as reactive or easily unsettled.

At the barrier level, shea's fatty acids contribute to the skin's surface lipid environment, supporting the occlusive aspect of the three-layer moisture retention approach: humectants draw water in, barrier lipids like ceramides and cholesterol organize it, and emollients like shea help seal the surface to reduce its loss. In the Oil-Serum context, organic shea oil brings this emollient contribution into a 100%-active, waterless formula where every ingredient earns its place at greater than 5%.

FOUND IN

In 2 Formulas

Shea is present in the two richest formulas in the Sweet Chemistry lineup - as butter in the Lipid-Cream and as organic oil in the Oil-Serum - both chosen for their relevance to drier, more emollient-dependent skin types.

Hydration - Dry to Dehydrated

Elasticity Reinforcing Lipid-Cream Shea Butter - 1.7 oz / 50 ml

The Lipid-Cream pairs shea butter with jojoba seed oil, sea buckthorn, and squalane in a nourishing emollient complex. Co-delivered with 3% Matrikynes® peptides, 2% THD ascorbate, and a full ceramide barrier blend in a radiant finish for dry and dehydrated skin.

Nourishment - Dry to Combination

Barrier Repairing Oil-Serum Shea Oil (Organic, >5%) - 1.0 oz / 30 ml

In the Oil-Serum, organic shea oil is one of eleven organic botanicals present at greater than 5%, contributing emollient richness and fatty acid depth to the lipid carrier base alongside squalane, jojoba, and sea buckthorn.

WORKS TOGETHER WITH

Skin-Identical Lipid Squalane

INCI: Squalane.

At 7% in the Oil-Serum and functional levels in the Lipid-Cream. A lightweight, non-comedogenic emollient structurally analogous to skin's own sebum. Synergy Note: Shea's richer, stearic acid-heavy emollient character pairs with squalane's lighter, faster-absorbing profile - together they create an emollient system that is both deeply nourishing and non-occlusive in texture. View Profile - /pages/ingredients/squalane

Liquid Wax Ester Jojoba Seed Oil

INCI: Simmondsia Chinensis (Jojoba) Seed Oil.

Present alongside shea in both the Lipid-Cream and Oil-Serum. A liquid wax ester with a sebum-compatible molecular structure. Synergy Note: Jojoba's sebum-compatible wax ester character balances shea's denser fatty acid profile - supporting a combined emollient system that nourishes without congestion.

Barrier Lipid Complex Ceramide EOP, AP, NP + Cholesterol

INCI: Ceramide EOP, Ceramide AP, Ceramide NP, Cholesterol.

The full barrier lipid complex in the Lipid-Cream, associated with lamellar structure support and TEWL reduction. Synergy Note: Ceramides address the structural barrier layer; shea butter addresses the surface emollient layer - together they cover both the intercellular lipid matrix and the surface lipid film that healthy skin relies on for moisture retention.

ECM Peptide Complex Matrikynes® Bone Peptides

INCI: Hydrolyzed Cow Bone Extract.

At 3% in all four formulas, associated with improvements in the appearance of skin density and aging signs. Synergy Note: A deeply nourished, emollient-rich skin surface is associated with a more comfortable environment for the dermal-targeting activity of Matrikynes® peptides - shea supports the surface conditions that allow deeper actives to work.