North Dakota Cosmetology Practice Exam

Ethyl alcohol is the most common volatile organic compound used in hair spray because it helps to dissolve the active ingredients and allows for an even spray. Methanol and isopropanol are not commonly used in hair spray as they can be harsh on the hair and skin. Acetone is also not commonly used as it can cause hair to become dry and brittle. Therefore, ethyl alcohol is the best option for a safe and effective hair spray product.