Vitamin E serves two key purposes in this product. Its primary role is as an antioxidant, helping to protect the body's cells from oxidative stress that can occur naturally. This is a well-known, general function of vitamin E in supplement blends. Second, it plays a crucial protective role for the polyunsaturated fats (omega-3, -6, and -9) within the capsule itself. These fatty acids, particularly omega-3, are sensitive to oxidation, which can degrade their quality over time. By including vitamin E, the formula helps maintain the stability and freshness of the essential oils during the capsule's shelf life. This combination makes practical sense for an oil-based supplement, providing a complementary nutrient that supports the integrity of the formula and contributes to the nutritional profile of the capsule.