The unsaponifiable fraction of shea butter is a concentrated portion rich in phytosterols, triterpene alcohols, tocopherols and other minor lipids that remain after saponification. It is used in skincare for its emollient, soothing and barrier-supporting properties.
| Reported effect | How often | Notes |
|---|---|---|
Skin irritation or sensitivity | Rare | Generally well tolerated; mild irritation occasionally reported in sensitive individuals. |
Allergic contact dermatitis | Very rare | Tree-nut-derived but allergenic protein content is negligible; sensitization is uncommon. |
Comedogenicity / pore congestion | Rare | Considered low comedogenic potential, though rich lipids may aggravate acne-prone skin in some cases. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.