The Transdermal C Serum delivers a powerful dose of vitamin C that effectively penetrates the deepest layers of your skin and stimulates collagen and connective tissue production, promotes accelerated healing, and protects your skin from environmental toxins. While the skincare market is suddenly flooded with vitamin C serums, they often limit the concentration of vitamin C to 1% to 5%. Truth Treatment Systems, understands the important pharmacological principle, “The dose makes the medicine.” That’s why founder Ben Fuchs uses above 75% fat soluble vitamin C in the Transdermal C Serum. Vitamin C is the #1 active ingredient that supports collagen and elastin production to give the skin a firmer and visibly lifted appearance.