Oleanolic acid is widely used in the pharmaceutical and cosmetic industries due to its diverse biological properties. It is known for its anti-inflammatory, antioxidant, and hepatoprotective effects, making it a key ingredient in treatments for liver disorders and skin conditions. In traditional medicine, it is utilized to manage diabetes and support cardiovascular health. Additionally, its antimicrobial properties are leveraged in formulations to combat infections. In cosmetics, it is incorporated into skincare products for its anti-aging and wound-healing benefits. Its ability to modulate immune responses also makes it a candidate for research in autoimmune diseases and cancer therapy.