Final answer:
Fillers are specialized preparations used to equalize hair porosity and deposit a base color in a single application. They play a crucial role in ensuring even color absorption and are different from paint and coatings fillers, which add texture and reduce cost.
The Correct Option is; c) Fillers.
Step-by-step explanation:
Specialized preparations designed to equalize hair porosity and deposit a base color in one application are known as fillers.
Fillers help to ensure that hair color is absorbed evenly and can provide a more uniform color application. In permanent hair coloring, three main components are required: a diaminobenzene or diaminotoluene derivative, a coupler, and an oxidant.
These work together in a chemical process involving oxidation to create the final dye molecules that become locked inside the hair shaft, contributing to a permanent coloring effect.
In the context of paints and coatings, fillers are granular solids that provide texture, improve toughness, and can influence the cost of the product.
However, in cosmetology, especially haircare, fillers serve a slightly different purpose by preparing the hair for color treatment and ensuring even results, as they fix issues with hair porosity before coloring.