What is the typical pH range of hair?

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Prepare for the New Jersey Barber State Board Exam with quiz questions, hints, and detailed explanations to boost your confidence. Excel on your exam day!

Multiple Choice

What is the typical pH range of hair?

Explanation:
Hair favors a slightly acidic environment. The natural pH of hair and its protective coating sits roughly between 4.5 and 5.5. Keeping things in this range helps the cuticle scales stay closed, which preserves moisture, shine, and strength. If the pH were too alkaline, the cuticle would lift and hair could become more porous and prone to damage. That’s why styling products and shampoos are formulated to be slightly acidic, aligning with this natural range.

Hair favors a slightly acidic environment. The natural pH of hair and its protective coating sits roughly between 4.5 and 5.5. Keeping things in this range helps the cuticle scales stay closed, which preserves moisture, shine, and strength. If the pH were too alkaline, the cuticle would lift and hair could become more porous and prone to damage. That’s why styling products and shampoos are formulated to be slightly acidic, aligning with this natural range.

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