Carnosic acid is a natural phenolic compound found primarily in rosemary (Rosmarinus officinalis) and sage (Salvia officinalis). It exhibits antioxidant properties, which help in preventing oxidative stress in food and biological systems. Carnosic acid is known for its ability to scavenge free radicals and has been studied for its potential health benefits, including anti-inflammatory and neuroprotective effects. In culinary applications, it contributes to the flavor and aroma of rosemary and sage, enhancing the sensory experience of dishes. Its stability under heat makes it suitable for cooking and food preservation.