On the contrary, synthetic ingredients are "man made" chemicals devoid of life. The body recognizes that they are different from nature's plants and one's own chemistry. The immune system registers this as foreign, possibly toxic matter and may respond with an allergic reaction.
Our skin is a reflection of our inner health and well being. It reflects radiance when we are in good health and a dull appearance when our health is compromised. Our skin functions as a major organ of elimination of toxins and impurities for our body. It can be viewed as a valuable form of body communication providing us with information about the state of our health.