What pH range does acidic shampoo fall under?

Acidic shampoos fall within the pH range of 0 to 6.9. This lower pH helps to maintain the health of the hair and scalp by preventing the cuticle layer of the hair from lifting. A pH below 7 indicates an acidic nature, which can help in closing the hair cuticle, allowing for a smoother, shinier appearance and reducing frizz. The acidity can also help in removing product buildup and combating issues such as dandruff, making it particularly beneficial for those with curly or textured hair.

In contrast, shampoos with a pH of 7 and above are considered neutral to alkaline. These would not possess the same benefits regarding cuticle management, which is crucial for the integrity of natural hair. Therefore, understanding the significance of pH in hair care products underscores the importance of choosing an acidic shampoo for certain hair types and conditions.