What type of product addition improves hydration in a client's routine with acne-related dryness?

In the context of improving hydration for a client dealing with acne-related dryness, adding a moisturizer to their routine is particularly beneficial. Moisturizers are designed to hydrate the skin by creating a barrier that helps retain moisture, thus addressing dryness effectively. They often contain emollients, occlusives, and humectants that work together to provide hydration by sealing in water and preventing transepidermal water loss.

For individuals with acne, maintaining hydration is crucial because certain acne treatments can lead to increased dryness. A well-formulated moisturizer can help balance the skin’s moisture levels without clogging pores, which is essential for clients concerned about acne. It ensures that the skin remains plump and reduces the risk of irritation or compromise of the skin barrier that can result from overly dry skin.

While humectants, which attract water to the skin, also play a vital role in hydration, they are typically components found within moisturizers. Anti-inflammatory serums focus on calming irritation and might provide some level of moisture but do not primarily serve the role of hydration. Exfoliating acids can improve skin texture but may lead to further dryness if not followed by adequate moisturizing. Therefore, a moisturizer is the most comprehensive choice for enhancing hydration in this specific scenario.