Why is shampoo a petroleum products?

Shampoo is often considered a petroleum product because many of its ingredients, such as surfactants and emulsifiers, are derived from petrochemicals. These substances are synthesized from crude oil or natural gas, which are key components of the petroleum industry. Additionally, some shampoos may contain synthetic fragrances and preservatives that also stem from petroleum sources. As a result, the use of these ingredients links shampoo to the petroleum industry.