Cosmetics are used by different people all over the world. Cosmetics are defines as "substances or preparations intended for placement in contact with any external part of the human body". There are many types of cosmetics.
Shampoos and soaps are products used to clean the skin with the use of surfactants. Surfactants are molecules that have affinity both for oil and water. The oil-loving part captures the dirt and oil from your skin, while the water-loving part allows them to be rinsed off.
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