What is characteristic of hydroxide relaxers?

Hydroxide relaxers are characterized by their high alkaline pH content, typically ranging from 12 to 14. This high pH is essential for the relaxing process as it allows the relaxer to effectively break down the disulfide bonds in the hair, which are responsible for its natural curl pattern. The strong alkaline nature of hydroxide relaxers enables them to alter the hair's structure significantly, making them effective for straightening even the most resistant curl types.

In contrast to other relaxers, which may have a lower pH for a gentler approach, hydroxide relaxers are specifically formulated for more pronounced hair texture changes. It's important to understand that while these relaxers are effective, they require careful application and consideration of the hair's condition to avoid damage. The incorrect options would suggest attributes that do not align with the fundamental properties and intended use of hydroxide relaxers.