Shea Butter

Emollient Lipid

Also known as: Butyrospermum Parkii Butter, Karité Butter

Description

Shea butter is a fat extracted from the nuts of the African shea tree (Vitellaria paradoxa). It is uniquely rich in unsaponifiable matter (5–17%), including triterpenes (lupeol, α-amyrin, butyrospermol), tocopherols (vitamin E), and phytosterols, which confer substantial anti-inflammatory and antioxidant properties beyond simple emollience. Its fatty acid profile consists primarily of stearic acid (~45%) and oleic acid (~40%), providing a rich occlusive barrier that reduces transepidermal water loss (TEWL). Lupeol cinnamate, a key triterpene ester in shea butter, demonstrates anti-inflammatory activity by inhibiting lipoxygenase and cyclooxygenase pathways. [Akihisa 2010]

Mechanism of Action

Shea butter acts as a multi-functional occlusive emollient. Its high stearic acid content creates a semi-occlusive film on the skin surface, slowing TEWL and enhancing stratum corneum hydration. Oleic acid provides skin penetration enhancement and supplementary emollience. The unsaponifiable fraction, particularly lupeol cinnamate, inhibits 5-lipoxygenase and cyclooxygenase-2 (COX-2), reducing production of pro-inflammatory leukotrienes and prostaglandins. Phytosterols (stigmasterol, β-sitosterol) contribute to barrier lipid replenishment by mimicking endogenous cholesterol in the intercellular lipid lamellae. Vitamin E (α-tocopherol) provides antioxidant defense against lipid peroxidation. [Honfo 2014]

Indications

  • Dry skin / xerosis [Akihisa]
  • Atopic dermatitis [Honfo]
  • Irritant contact dermatitis [Akihisa]
  • Barrier repair
  • Chapped or cracked skin
  • Post-inflammatory skin care
  • Scar management (emollient support)

Available Concentrations

1%3%5%10%20%100% (pure)

Side Effects

  • Rarely comedogenic in some individuals (comedogenicity rating 0–2 depending on source) [Honfo]
  • Contact allergy (rare — primarily in individuals with latex-fruit syndrome or tree nut sensitivity)
  • Heavy texture may not suit oily or acne-prone skin types

Contraindications

  • Known hypersensitivity to shea nut proteins (rare, may cross-react with latex allergy)
  • Highly comedogenic-sensitive individuals should patch-test first

Pregnancy Category

Not classified (considered safe for topical use)

Found In

Cosmetics containing Shea Butter

Chemist at Play 5% AHA + 1% BHA Body LotionChemist at PlayEarth Rhythm Phyto Ceramide Deep Moisture CreamEarth RhythmFixderma Reticuram Retinol SerumFixdermaVenusia Max Intensive Moisturising CreamDr. Reddy's Laboratories

Related Conditions

Xerosis Occlusive emollient — forms a rich lipid barrier, reduces TEWL, and restores stratum corneum hydration in severely dry skin Atopic Dermatitis Anti-inflammatory emollient — lupeol cinnamate inhibits LOX/COX pathways, while stearic acid and phytosterols replenish deficient barrier lipids Contact Dermatitis Barrier-protective emollient — provides occlusive moisture seal and anti-inflammatory support during skin barrier recovery

References

  1. Akihisa T, Kojima N, Kikuchi T, et al. "Anti-inflammatory and chemopreventive effects of triterpene cinnamates and acetates from shea fat." J Oleo Sci, 2010. doi:10.5650/jos.59.273
  2. Honfo FG, Akissoe N, Linnemann AR, et al. "Nutritional composition of shea products and chemical properties of shea butter: a review." Crit Rev Food Sci Nutr, 2014. doi:10.1080/10408398.2011.604142

Limitations

This page provides a general overview of Shea Butter in dermatology. It does not cover every possible use, formulation, or interaction. Individual responses to compounds vary — what works for one person may not work for another. Always consult a qualified dermatologist before starting or changing any treatment.