Oleanonic Acid (3-Oxooleanolic Acid, CAS 17990-42-0) is a high-purity pentacyclic triterpenoid compound. Sourced sustainably from: Olive pomace (Olea europaea) – upcycled agro-industrial waste Chinese angelica root (Aralia chinensis) – wildcrafted from GAP-certified farms Ligustrum berries (Ligustrum lucidum) – controlled cultivation