Black hair relaxer, a chemical treatment, alters the texture of curly or coily hair, making it straighter and smoother. A common example is sodium hydroxide relaxer.
Black hair relaxers have been used for centuries to achieve desired hair styles and textures. They offer benefits such as reduced hair shrinkage, increased manageability, and a more uniform appearance. The development of no-lye relaxers in the 1980s reduced the risk of scalp irritation and hair damage associated with traditional relaxers.