Final answer:
The correct item to use for saturating a pad when removing comedones is a water-based toner. This type of toner helps cleanse and soften the skin, facilitating easier extraction of blackheads.
Step-by-step explanation:
When removing comedones, which are commonly known as blackheads, it is important to prepare the skin properly to ensure that the comedones can be removed effectively and safely. The item you should use to saturate a pad when removing comedones is c. Water-based toner. A water-based toner helps to cleanse the skin and often contains ingredients that can soften the comedones, making them easier to extract. Astringents can be overly drying, and oil-based serums could potentially exacerbate the condition. Moisturizers, on the other hand, are generally used after comedone extraction to hydrate the skin, not during the extraction process.