What is the result of applying a chemical texturizing product on unwashed hair?

Applying a chemical texturizing product on unwashed hair can lead to uneven processing. This occurs because the oils, dirt, or product residues present on unwashed hair can create a barrier that affects how evenly the chemical interacts with the hair strands. This barrier may result in sections of hair processing at different rates, leading to inconsistent curl formation or texture.

Clean hair allows for better penetration of the texturizing chemicals, ensuring that the product can work effectively across all hair strands. In contrast, dirty hair can inhibit the even distribution and absorption of the chemical, which is essential for achieving uniform results. Therefore, the emphasis is on the necessity of starting with clean hair for an even and effective chemical texturizing treatment.