Montana Barber Practice Exam

Question: 1 / 400

What is an ideal pH for maintaining healthy hair?

7.5 to 9.0

4.5 to 5.5

The ideal pH range for maintaining healthy hair is between 4.5 to 5.5. This slightly acidic range is important because it closely matches the natural pH of the scalp and hair. Hair cuticles are more likely to lie flat and remain sealed when the hair is in this pH range. This helps to lock in moisture, prevent frizz, and reduce the likelihood of damage from environmental factors.

Maintaining this pH level also helps keep the scalp healthy, minimizing problems like dandruff and irritation. Products that are too alkaline (above a pH of 7) can cause the hair cuticle to swell and become more porous, leading to moisture loss and damage. Conversely, products that are too acidic (below a pH of 4.5) could lead to overly tight cuticles, which can also be damaging. Thus, the 4.5 to 5.5 range strikes the right balance for optimal hair health.

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5.0 to 6.0

3.0 to 4.0

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