Acidic vs. Alkaline Brow Shampoos: Which One Should You Choose?

Understanding pH in brow styling is fundamental to achieving beautiful and healthy brows.

Acidic shampoos have a pH level below 7. Their primary functions are:

  • Sealing the hair cuticle: This makes the brow hairs smoother, shinier, and more receptive to color.

  • Protecting against external factors: The acidic pH creates a protective barrier, shielding the hairs from damage.

  • Preserving styling results: They help maintain the effects of lamination or henna treatments for longer.

Alkaline shampoos have a pH level above 7. Their primary functions are:

  • Opening the hair cuticle: This allows colorants to penetrate the hair shaft more deeply, ensuring a more intense color.

  • Degreasing: They're ideal for cleansing brows before coloring treatments, removing impurities and sebum.

When to use which shampoo?

  • Acidic shampoos:

    • After coloring treatments (henna, tint)

    • After brow lamination

    • For daily care to maintain treatment results

    • For dry and damaged brows

  • Alkaline shampoos:

    • Before coloring treatments

    • For cleansing brows before styling

    • For oily brows

It's important to note that the ideal pH range for brow and lash styling products is between 4.5 and 7. This pH level helps maintain the skin's natural balance and minimizes irritation, ensuring optimal styling results. When styling brows, avoid shampoos with a pH above 7. For a more acidic shampoo, select one with a pH below 5. If you prefer a less acidic option, choose a shampoo with a pH between 5 and 7.

Summary

The choice of shampoo depends on the type of treatment and the condition of your brow hairs. Acidic shampoos nourish and protect, while alkaline shampoos cleanse and prepare for treatments. Understanding pH is crucial for achieving the best results in brow styling.

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Understanding the pH Scale: A Simple Guide