Which of the following is NOT a role of the alkalizer?

The role of an alkalizer in chemical processes, such as those used in cosmetology, is primarily linked to facilitating chemical changes within the hair structure. Alkalizers are ingredients that increase the pH level, which leads to the opening of the hair cuticle layer, allowing for better penetration of other chemical agents, such as color or relaxers. This action also facilitates the swelling of the hair cuticle, making it more receptive to treatments.

While alkalizers contribute to the chemical transformation of hair, they do not directly lead to a physical change. Instead, a physical change refers to modifications that do not alter the chemical structure of the hair, such as altering texture without breaking down the hair proteins. Therefore, stating that alkalizers make a physical change is not accurate, as their functionality is more aligned with inducing and supporting chemical changes.