Carnosol is widely used in the cosmetic and skincare industry due to its strong antioxidant properties. It helps protect the skin from oxidative stress and environmental damage, making it a valuable ingredient in anti-aging creams and serums. Its anti-inflammatory effects are beneficial in soothing irritated skin and reducing redness, often found in products designed for sensitive or acne-prone skin. In the food industry, carnosol acts as a natural preservative. It helps prevent lipid oxidation, extending the shelf life of oils, meats, and other perishable products without the need for synthetic additives. This makes it popular in clean-label and organic food formulations. Emerging research supports carnosol’s potential in health supplements and pharmaceuticals. It has shown promise in laboratory studies for its anticancer activity, particularly in targeting prostate and breast cancer cells by inducing apoptosis and inhibiting tumor growth. It also exhibits antimicrobial and neuroprotective properties, suggesting possible applications in treating infections and neurodegenerative conditions. However, most of these therapeutic uses are still under investigation and not yet established in clinical practice.