What type of product is primarily designed to hydrate the skin?

The primary function of a product designed to hydrate the skin is to provide moisture and improve skin condition. Relief shampoo is formulated specifically to address dry or sensitive skin issues, often incorporating ingredients that soothe irritation, replenish moisture, and enhance overall skin hydration.

In contrast, other products listed, such as TrizChlor shampoo, typically focus on antimicrobial properties and may be used to treat skin infections or conditions that require cleansing without necessarily prioritizing hydration. Biohex/Miconahex shampoo also focuses on treating fungal or bacterial infections rather than skin hydration. Klear Otic is specifically formulated for ear cleaning and does not address skin hydration directly. Thus, Relief shampoo stands out as it is primarily intended for moisturizing and hydrating the skin.