What should be used to protect the scalp during a chemical texturizing service?

Using protective creams or oils is essential during a chemical texturizing service to safeguard the scalp from potential irritation and chemical burns. These protective products create a barrier between the scalp and the harsh chemicals typically used in texturizing treatments. They help to minimize the skin's exposure to the chemicals, which can lead to discomfort or adverse reactions.

In contrast, water is not an effective barrier and does not provide any protective properties, while hair gel and hair serum are primarily styling products that do not serve the purpose of protecting the scalp. Therefore, the appropriate choice for ensuring scalp safety during a chemical process is the use of protective creams or oils, as they are specifically designed for this purpose.