Which type of hair product is primarily designed to provide hydration?

Conditioners are primarily designed to provide hydration to the hair. They contain moisturizing agents that help restore moisture balance, improve manageability, and enhance the overall appearance of the hair. Conditioners penetrate the hair shaft and coat the cuticle, providing a protective layer that retains moisture and adds shine.

While shampoos are important for cleansing the hair by removing dirt and oils, they are not specifically formulated for hydration. Hair gels and hairsprays serve different purposes, as they are primarily styling products meant to hold hair in place or create texture and volume, rather than to hydrate. Thus, the characteristics and formulation of each product highlight why conditioners are specifically tailored for delivering hydration to the hair.