Liposomal Vitamin C provides this key foundational nutrient formulated with liposomal technology. Liposomes are spheres made of phospholipids — the primary building blocks of cell membranes. Owing to this structure, liposomes bond easily with cell membranes to facilitate intracellular delivery of their nutrient cargo. Thanks to this enhanced delivery system, nutrients delivered in liposomal form offer superior absorption and bioavailability. Each 5 mL serving (approximately 1 teaspoon) of this lemon-flavored formula provides 1,000 mg of vitamin C, as sodium ascorbate. The 130 mg of sodium per serving helps to further facilitate the absorption of vitamin C.