Self-tanning products are cosmetic items designed to give the skin a sun-kissed glow without the need for sun exposure. They typically contain active ingredients like dihydroxyacetone (DHA), which reacts with the amino acids in the skin's surface to create a temporary tan. These products come in various forms, including lotions, sprays, and mousses, allowing users to choose their preferred application method. To use self-tanning products effectively, it's important to prepare the skin by exfoliating and moisturizing beforehand. This helps achieve an even application and prolongs the tan's duration. Results usually develop within a few hours and can last several days, depending on the product and skin type.