Illinois Cosmetology Practice Exam 2025 – 400 Free Practice Questions to Pass the Exam

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What is the result of inadequate hair washing prior to chemical services?

Longer treatment time

Compromised results or reactions

Inadequate hair washing prior to chemical services can lead to compromised results or reactions. When hair is not properly cleansed, residual products such as oils, styling products, or environmental pollutants can inhibit the effectiveness of the chemical service. This residue can interfere with the absorption of chemicals, prevent even application, or lead to unexpected reactions.

For instance, if hair is not thoroughly washed, the chemical products may not penetrate the hair shaft properly, potentially resulting in uneven color or damage to the hair structure. Furthermore, buildup on the hair can alter the pH balance, impacting the performance of the chemicals used during the treatment. This is why proper cleansing is crucial to ensure that the chemical processes yield the desired outcome without adverse effects.

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Enhanced color vibrancy

Improved treatment absorption

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