Which type of product is beneficial for adding moisture to dry hair?

Conditioner is specifically designed to add moisture and nourishment to hair, making it particularly beneficial for dry hair. While shampoo is primarily used for cleansing the hair and scalp by removing dirt and oils, it can strip away natural moisture if used alone or too frequently. Hair gels are generally used for styling and may provide hold but do not typically moisturize hair. Hair serums can offer moisture and shine but are often formulated more for protection or frizz control rather than deep conditioning. Therefore, conditioner is the ideal choice for addressing dryness, as it works to restore moisture and improve overall hair health.