Sodium hydroxide relaxers are typically used on what type of hair?

Sodium hydroxide relaxers are specifically formulated to alter the structure of tightly curled hair. This type of hair often has a more complex structure with a stronger curl pattern, which can make it difficult to manage and style. Sodium hydroxide works effectively because it breaks down the protein bonds in the hair, allowing for a significant reduction in curl and a straighter appearance.

Tightly curled hair typically has a higher level of resistance to chemical treatments due to its dense and coiled kinks. Therefore, sodium hydroxide relaxers are particularly suitable as they provide a high level of strength to penetrate this hair type effectively. Using this relaxer on tightly curled hair allows for the desired transformation into a straighter style, making it a popular choice among hairstylists for clients seeking a smoother look.

For the other types of hair, such as straight, wavy, or fine hair, different methods or relaxers are usually preferred to avoid potential damage or undesirable results.