Final answer:
The product used to prepare and protect the hair during a pressing service to prevent scorching and breakage is a heat protectant or thermal protectant.
Step-by-step explanation:
The product used to prepare and protect the hair during a pressing service to help prevent scorching and breakage of the hair is a heat protectant or thermal protectant.
These products typically come in the form of sprays or creams and are applied to the hair before using heat styling tools such as flat irons or hair presses. They create a barrier between the hair and the hot tool, reducing the risk of damage.
Heat protectants contain ingredients that help to retain moisture in the hair, provide some level of heat insulation, and prevent excessive heat from reaching the hair shaft, which can cause scorching and breakage.