SkinMedica's patented blend, TNS, is their signature formula that contains powerful physician strength anti-aging ingredients. The TNS blend consists of antioxidants, cytokines and growth factors which are essential to their successful methods of reducing signs of aging. The TNS product line each target specific regions of your skin, such as your face, eyes and lips. The TNS line will alleviate wrinkles, help with elasticity and brighten up dull skin textures. Applying these products will Leave you with younger, brighter, firmer skin.