What is a common chemical process used to straighten hair?

The common chemical process used to straighten hair is known as relaxing. This method typically involves using a chemical solution that alters the structure of the hair's protein bonds. By breaking down these bonds, the hair becomes more malleable and can be reshaped to a straighter form.

Relaxers are formulated to effectively reduce curl and frizz while also making the hair easier to manage, often resulting in a smoother and shinier appearance. It is an essential technique used in salons for clients looking for long-term straightening solutions rather than temporary styling methods.

While smoothing refers to various techniques to lessen frizz or achieve a sleeker look, it does not specifically denote a chemical alteration of the hair's structure. Flat ironing, on the other hand, is a styling method that uses heat to straighten hair but does not involve any chemical processes. Similarly, blow drying is primarily a drying method that can help style hair but does not fundamentally alter its structure. Therefore, relaxing is the most accurate term for the chemical process specifically designed for straightening hair.