Dr. Mercola Liposomal Ubiquinol CoQ10 optimizes potential benefits over other vitamin D supplements. Unlike many other vitamin D supplements that are often the inferior D2 form ergocalciferol our Liposomal Vitamin D3 is the preferred form ? vitamin D3 cholecalciferol. Our formula contains phospholipids from sunflower lecithin that create liposomes in your gastrointestinal tract to help the vitamin D3 molecules gain entry across your gut membrane to its target organs and cells.* They are packed in tightly sealed Licaps hard-shelled capsules rather than oxygen-permeable soft gels to help avoid leakage and to maintain freshness. *Statements regarding dietary supplements have not been evaluated by the FDA and are not intended to diagnose treat cure or prevent any disease or health condition.