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What aspect of hair care does maintaining a proper pH level impact?

  1. Color retention

  2. Hair elasticity

  3. Bacterial growth

  4. Hair’s overall health

The correct answer is: Hair’s overall health

Maintaining a proper pH level is crucial for the overall health of hair. The hair and scalp naturally have a slightly acidic pH, typically ranging from 4.5 to 5.5. This acidic environment helps to keep the cuticle (the outer layer of the hair) closed and flat, which protects the inner structure of the hair from damage and reduces moisture loss. When the pH level is balanced, it can prevent excessive dryness, brittleness, and breakage, thus promoting healthier hair. In addition to protecting the hair structure, a proper pH level also supports the scalp's health by creating an unfavorable environment for harmful bacteria and fungi, which can lead to scalp issues such as dandruff or infections. Furthermore, maintaining this level contributes to the overall shine and manageability of the hair. Therefore, proper pH balance is integral to sustaining hair's overall health, making it resilient and visually appealing.