South Carolina Barber Practice Exam 2026 - Free Barber Practice Questions and Study Guide

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What is a common ingredient in shampoos intended to remove buildup?

Petroleum

Sulfates (e.g., sodium lauryl sulfate)

Sulfates, such as sodium lauryl sulfate, are commonly included in shampoos designed to remove buildup due to their effectiveness as cleansing agents. They work by creating lather and breaking down oil and dirt, making them particularly useful for eliminating residue left from styling products or excess scalp oils. This makes sulfates a popular choice in formulations aimed at providing a deep cleanse.

In contrast, petroleum and silicones can actually contribute to buildup rather than remove it. Petroleum-based ingredients can leave a residue on hair, while silicones coat the hair to provide shine and smoothness but can accumulate over time. Parabens are used as preservatives in cosmetics and do not play a role in removing buildup; instead, their function is to extend the shelf life of products. Thus, sulfates are specifically included for their ability to effectively cleanse and clarify, making them the right choice for this purpose.

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Silicones

Parabens

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