Since the beginning of history that has been recorded, people have tried to hide or improve their natural odor by applying perfume, which imitates the pleasant smells that are found in nature. There are a variety of natural and synthetic components that go into the production of perfume, which can then be used to scent the air, the skin, and clothing, as well as in cleaning products and cosmetics. No two people's bodies are exactly alike in terms of their chemistry, temperature, and odor, so no two perfumes will ever smell exactly the same on different people.