Skin Eternal contains five key ingredients that together protect the skin and support healthy skin tissue. Ascorbyl palmitate, the cornerstone ingredient, is a fat-soluble vitamin C ester. According to in vitro research, it may be more effective than water-soluble vitamin C in providing antioxidant protection to the lipids in cell membranes. DMAE is an immediate precursor of choline, an important component of skin cell membranes. Alpha-lipoic acid is a powerful fat and water-soluble antioxidant that recycles the antioxidant vitamins C and E. Grape seed extract scavenges lipid and water-soluble free radicals, and supports the integrity of elastin and collagen.