Dietary Supplement Lipid Soluble Esterified Vitamin CDiscussion: Ascorbyl Palmitate is a fat-soluble form of Vitamin C that has been shown to cross the blood-brain barrier and cell membranes. As an esterified form of Vitamin C, it provides antioxidant activity and is intended to provide nutritive support for normal, healthy collagen synthesis, cartilage and bone development, immune function, capillary and blood vessel integrity and nerve impulse transmission.