This document provides an overview of spray tanning, including its historical background, benefits, and how it works. Spray tanning has evolved from a symbol of poverty to a popular beauty trend, especially after the 1920s, while advancements in application methods have made it a sought-after service. The active ingredient, dihydroxyacetone (DHA), reacts with skin amino acids to create a natural tan, which is often enhanced with other ingredients for better results.