doTERRA xEO Mega Essential Oil Omega Complex is a unique formula of CPTG Certified Pure Therapeutic Grade essential oils and a proprietary blend of marine- and land-sourced omega fatty acids. Omega fatty acids help support joint, cardiovascular, and brain health, and support healthy immune function. One serving of xEO Mega provides 900 milligrams of marine lipids (providing 300 mg of EPA, 300 mg of DHA, and 70 mg of other omega 3s), and a blend of 250 mg of plant-sourced fatty acids. xEO Mega also includes 800 IU of natural vitamin D, 60 IU of natural vitamin E, and 1 mg of astaxanthin, a powerful antioxidant carotenoid* harvested from microalgae. xEO Mega is encapsulated in a vegetarian-friendly softgel.