What is the effect of a high pH product on hair?

A high pH product on hair can significantly affect its structure and health. When the pH level is elevated, it disrupts the natural balance of the hair and opens the cuticle layer. This opening can lead to swelling, where the hair shaft absorbs too much moisture, causing it to stretch and become weak. Over time, this swelling and weakening can result in damage such as breakage, frizz, and overall loss of shine and manageability.

In contrast, products with a lower pH generally help to smooth the hair cuticle, seal in moisture, and promote a healthier appearance. Higher pH products are typically associated with processes that alter the hair's chemistry, such as chemical relaxers or certain permanent wave solutions, which can exacerbate the potential for damage if not used correctly. Therefore, understanding the effect of pH on hair health is crucial for effective hair care.