Linolenic acid, also known as alpha-linolenic acid, is an essential omega-3 polyunsaturated fatty acid found in various plant oils such as flaxseed, canola, and soybean. It is widely used in the food and nutrition industry, incorporated into dietary supplements and functional foods to support heart health, reduce inflammation, and improve brain function. In the cosmetic industry, it is added to skincare products for its moisturizing and anti-aging properties, helping to maintain skin elasticity and reduce dryness. Additionally, linolenic acid is utilized in the pharmaceutical industry for developing anti-inflammatory agents and treatments for skin conditions. It is also employed in the production of biofuels and as a raw material in the synthesis of various industrial chemicals, including paints, varnishes, and coatings. Its role in promoting sustainable and eco-friendly products is gaining attention in green chemistry applications.