Complex sentence: Spray tanning does not mean that a color is sprayed on the body, what is used in this process is a colorless chemical which burns the dead cells located on the top layer of the skin resulting in a brown color.
Split into simpler sentences: Spray tanning does not mean that a color is sprayed on the body. What is used in the spray tanning process is a colorless chemical which burns the dead cells located on the top layer of the skin, resulting in a brown color.