Antioxidant Support Vegetarian Sublingual Dietary Supplement Coenzyme Q10 is essential to human life and is found in most cells within the body. As people age, or experience environmental stresses, their cell’s ability to produce coenzyme Q10 diminishes. Taking Coenzyme Q10 as a dietary supplement may aid in maintaining youthful levels of this vital substance.The Benefit of SublingualsThe sublingual form absorbs directly into the bloodstream, via the blood vessels under the tongue and in the cheeks, allowing for quick entry into the system.