Rock the Colorado Cosmetology Written Exam 2025 – Beautify Your Career Today!

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Acid perms typically fall within what pH range?

4.5-7.0

Acid perms typically fall within the pH range of 4.5-7.0. This is because acid perms are designed to be gentle on the hair, making them more suitable for damaged or fine hair. Option B is incorrect because it overlaps with the range for alkaline perms, which typically fall within 8.2-9.6. Option C is incorrect because it falls outside of the acidic range and is more suited for alkaline perms. Option D is also incorrect because it is too alkaline for acid perms and could cause excessive damage to the hair. Generally, the lower the pH of the perm, the gentler it is on the hair.

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5.0-6.0

7.0-8.0

8.0-9.0

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