Chemical Agents
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An active ingredient is a component in a product, particularly in pharmaceuticals, pesticides, and cosmetics, that is biologically active. It is the ingredient responsible for the intended effects of the product. In medications, the active ingredient is the part that treats the condition or disease. For example, in a pain reliever like ibuprofen, the active ingredient is ibuprofen itself, which reduces pain and inflammation. In contrast, other components in the product, known as inactive ingredients or excipients, may aid in the delivery or stability of the active ingredient but do not have therapeutic effects.