What effect does shampoo have on the hair?

Shampoo cleanses the hair and scalp by removing dirt, oil, and product buildup, which helps maintain a healthy environment for hair growth. It often contains surfactants that create lather, aiding in the cleansing process. Additionally, shampoos may include conditioning agents and beneficial ingredients that can enhance hair texture, shine, and manageability. However, excessive use or harsh formulations can strip natural oils, potentially leading to dryness and damage.