What role does a conditioner play after shampooing?

Conditioners are formulated to hydrate the hair and help maintain its moisture balance, especially after the cleansing process with shampoo. Shampoo cleanses the scalp and hair of oils, dirt, and product buildup, which can leave hair feeling dry and stripped of its natural moisture. Applying conditioner after shampooing replenishes this lost moisture, making hair feel softer, smoother, and more manageable. Conditioners often contain emollients and humectants that work to lock in hydration, enhance the hair's appearance, and improve overall health.

While some conditioners may indeed contribute to volume, provide detangling benefits, or impact greasiness, the primary and most critical role they fulfill after shampooing is to rehydrate the hair and restore its moisture balance. This overall hydration helps in maintaining the integrity of the hair structure and promoting a healthy look and feel.