Euterpe Oleracea Sterols Best Emollient Hydration Euterpe Oleracea Sterols description Euterpe oleracea (acai) sterols are the sterol portion derived from the acai plant. Plant sterols have a replenishing and hydrating ability on skin. One of the identified sterols in acai is beta-sitosterol, which has soothing benefits for skin. Related ingredients: Acai Beta-Sitosterol Euterpe Oleracea (Acai) Sterols