Hair smoothening is a chemical-based treatment for unruly and difficult-to-manage hair. It smoothes and straightens hair with a formaldehyde-based lotion. It is capable of making dull hair look lustrous and eliminating frizziness. Smoothing your hair is a one-time process that can last anywhere from two to five months. It will also be determined by how quickly your hair grows. Hair smoothing treatments are typically performed in salons, parlours, or by beauty professionals.

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