Because some nutrients may break down during intestinal digestion, Source Naturals developed this sublingual coenzyme Q10. The sublingual form is absorbed directly into the bloodstream, via the blood vessels under the tongue and in the cheeks, allowing for quicker entry into the system. Coenzyme Q10 is essential to human life. It is found in every cell in the body as part of the food-into-energy conversion process. Unfortunately, as people age, or experience environmental stresses, their cells' ability to produce coenzyme Q10 diminishes. Taking coenzyme Q10 as a dietary supplementary aid in maintaining youthful levels of this vital substance.