Louisiana Cosmetology Board Practice Exam 2026 - Free Cosmetology Practice Questions and Study Guide

Question: 1 / 400

Which of the following is a common ingredient in hair conditioning treatments?

Alcohol

Silicone

Silicone is a common ingredient in hair conditioning treatments because it effectively adds shine, smoothness, and manageability to the hair. Silicones create a protective layer over the hair shaft, which helps to lock in moisture, reduce frizz, and enhance the overall appearance of the hair. They also improve the slip of the hair, making it easier to detangle and style. This makes silicones a popular choice among formulators looking to create effective hair conditioners.

In contrast, alcohol can be drying and may strip moisture from hair, which makes it less suitable for conditioning treatments. Hydrogen peroxide is primarily used as a bleaching agent rather than a conditioning agent and can lead to damage if used inappropriately. Ammonia is an alkaline substance commonly found in hair color products for opening the hair cuticle to help the color penetrate, but it is not beneficial for conditioning the hair.

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Hydrogen peroxide

Ammonia

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