North Carolina Cosmetic Arts Practice Exam

Question: 1 / 400

What is the pH range for most hair products?

Between 3.0 and 4.0

Between 4.5 and 5.5

The pH range for most hair products, specifically shampoos and conditioners, typically falls between 4.5 and 5.5. This range is important because it is slightly acidic, which helps to maintain the natural acidity of the hair and scalp. The hair’s cuticle layer is more closed and less prone to damage when pH is kept within this range, promoting smoothness and shine while preventing breakage.

Additionally, formulations within this pH range help to avoid excessive dryness or irritation, ensuring effectiveness without compromising the hair’s health. Products that are overly alkaline could open up the hair cuticle too much, leading to frizz and potential damage, while more acidic solutions can help with smoothness and moisture retention. Therefore, this specific pH range is optimal for maintaining the integrity and appearance of hair when using these products.

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Between 6.0 and 7.0

Between 7.0 and 8.5

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