Pantethine is a highly absorbable and biologically active form of pantothenic acid, or Vitamin B5. Pantethine is necessary for your body to produce Coenzyme A, a substance that is extensively involved in carbohydrate, lipid, and amino acid metabolism. In addition, Pantethine helps to support healthy serum lipid levels and possesses antioxidant capabilities, both of which help to support cardiovascular health.