What product is used to remove excess oil from the scalp?

The correct choice is dry shampoo, which is specifically formulated to absorb excess oil from the scalp and hair without the need for water. This makes it a convenient solution for refreshing hair between washes, particularly for individuals with oily scalps or busy lifestyles. Dry shampoo typically contains ingredients like starches or powders that effectively soak up oil, allowing the hair to appear cleaner and less greasy.

Conditioner, on the other hand, is designed to moisturize and improve the texture of the hair after shampooing but does not have oil-absorbing properties. Shampoo is primarily used to cleanse the hair and scalp by removing dirt, grease, and product buildup but may not be appropriate for immediate oil absorption if washing is not possible. Hair gel is meant for styling and does not contribute to oil control; instead, it may sometimes add to the buildup if used excessively. Thus, dry shampoo stands out as the most effective and practical choice for controlling excess scalp oil.